1830 lines
55 KiB
C
1830 lines
55 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Partial Copyright 2006 Peter Schlaile. */
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/** \file
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* \ingroup bke
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*/
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#ifdef WITH_FFMPEG
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# include <stdio.h>
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# include <string.h>
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# include <stdlib.h>
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# include "MEM_guardedalloc.h"
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# include "DNA_scene_types.h"
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# include "BLI_blenlib.h"
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# ifdef WITH_AUDASPACE
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# include <AUD_Device.h>
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# include <AUD_Special.h>
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# endif
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# include "BLI_endian_defines.h"
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# include "BLI_math_base.h"
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# include "BLI_threads.h"
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# include "BLI_utildefines.h"
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# include "BKE_global.h"
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# include "BKE_idprop.h"
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# include "BKE_image.h"
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# include "BKE_lib_id.h"
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# include "BKE_main.h"
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# include "BKE_report.h"
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# include "BKE_sound.h"
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# include "BKE_writeffmpeg.h"
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# include "IMB_imbuf.h"
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/* This needs to be included after BLI_math_base.h otherwise it will redefine some math defines
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* like M_SQRT1_2 leading to warnings with MSVC */
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# include <libavcodec/avcodec.h>
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# include <libavformat/avformat.h>
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# include <libavutil/channel_layout.h>
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# include <libavutil/imgutils.h>
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# include <libavutil/opt.h>
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# include <libavutil/rational.h>
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# include <libavutil/samplefmt.h>
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# include <libswscale/swscale.h>
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# include "ffmpeg_compat.h"
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struct StampData;
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typedef struct FFMpegContext {
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int ffmpeg_type;
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int ffmpeg_codec;
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int ffmpeg_audio_codec;
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int ffmpeg_video_bitrate;
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int ffmpeg_audio_bitrate;
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int ffmpeg_gop_size;
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int ffmpeg_max_b_frames;
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int ffmpeg_autosplit;
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int ffmpeg_autosplit_count;
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bool ffmpeg_preview;
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int ffmpeg_crf; /* set to 0 to not use CRF mode; we have another flag for lossless anyway. */
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int ffmpeg_preset; /* see eFFMpegPreset */
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AVFormatContext *outfile;
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AVCodecContext *video_codec;
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AVCodecContext *audio_codec;
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AVStream *video_stream;
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AVStream *audio_stream;
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AVFrame *current_frame; /* Image frame in output pixel format. */
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int video_time;
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/* Image frame in Blender's own pixel format, may need conversion to the output pixel format. */
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AVFrame *img_convert_frame;
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struct SwsContext *img_convert_ctx;
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uint8_t *audio_input_buffer;
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uint8_t *audio_deinterleave_buffer;
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int audio_input_samples;
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double audio_time;
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double audio_time_total;
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bool audio_deinterleave;
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int audio_sample_size;
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struct StampData *stamp_data;
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# ifdef WITH_AUDASPACE
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AUD_Device *audio_mixdown_device;
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# endif
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} FFMpegContext;
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# define FFMPEG_AUTOSPLIT_SIZE 2000000000
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# define PRINT \
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if (G.debug & G_DEBUG_FFMPEG) \
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printf
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static void ffmpeg_dict_set_int(AVDictionary **dict, const char *key, int value);
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static void ffmpeg_filepath_get(FFMpegContext *context,
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char *string,
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const struct RenderData *rd,
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bool preview,
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const char *suffix);
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/* Delete a picture buffer */
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static void delete_picture(AVFrame *f)
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{
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if (f) {
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if (f->data[0]) {
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MEM_freeN(f->data[0]);
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}
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av_free(f);
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}
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}
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static int request_float_audio_buffer(int codec_id)
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{
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/* If any of these codecs, we prefer the float sample format (if supported) */
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return codec_id == AV_CODEC_ID_AAC || codec_id == AV_CODEC_ID_AC3 ||
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codec_id == AV_CODEC_ID_VORBIS;
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}
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# ifdef WITH_AUDASPACE
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static int write_audio_frame(FFMpegContext *context)
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{
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AVFrame *frame = NULL;
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AVCodecContext *c = context->audio_codec;
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AUD_Device_read(
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context->audio_mixdown_device, context->audio_input_buffer, context->audio_input_samples);
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frame = av_frame_alloc();
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frame->pts = context->audio_time / av_q2d(c->time_base);
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frame->nb_samples = context->audio_input_samples;
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frame->format = c->sample_fmt;
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# ifdef FFMPEG_USE_OLD_CHANNEL_VARS
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frame->channels = c->channels;
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frame->channel_layout = c->channel_layout;
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const int num_channels = c->channels;
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# else
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av_channel_layout_copy(&frame->ch_layout, &c->ch_layout);
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const int num_channels = c->ch_layout.nb_channels;
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# endif
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if (context->audio_deinterleave) {
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int channel, i;
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uint8_t *temp;
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for (channel = 0; channel < num_channels; channel++) {
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for (i = 0; i < frame->nb_samples; i++) {
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memcpy(context->audio_deinterleave_buffer +
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(i + channel * frame->nb_samples) * context->audio_sample_size,
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context->audio_input_buffer +
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(num_channels * i + channel) * context->audio_sample_size,
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context->audio_sample_size);
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}
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}
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temp = context->audio_deinterleave_buffer;
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context->audio_deinterleave_buffer = context->audio_input_buffer;
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context->audio_input_buffer = temp;
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}
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avcodec_fill_audio_frame(frame,
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num_channels,
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c->sample_fmt,
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context->audio_input_buffer,
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context->audio_input_samples * num_channels *
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context->audio_sample_size,
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1);
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int success = 1;
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int ret = avcodec_send_frame(c, frame);
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if (ret < 0) {
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/* Can't send frame to encoder. This shouldn't happen. */
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fprintf(stderr, "Can't send audio frame: %s\n", av_err2str(ret));
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success = -1;
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}
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AVPacket *pkt = av_packet_alloc();
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while (ret >= 0) {
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ret = avcodec_receive_packet(c, pkt);
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if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
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break;
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}
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if (ret < 0) {
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fprintf(stderr, "Error encoding audio frame: %s\n", av_err2str(ret));
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success = -1;
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}
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pkt->stream_index = context->audio_stream->index;
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av_packet_rescale_ts(pkt, c->time_base, context->audio_stream->time_base);
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# ifdef FFMPEG_USE_DURATION_WORKAROUND
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my_guess_pkt_duration(context->outfile, context->audio_stream, pkt);
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# endif
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pkt->flags |= AV_PKT_FLAG_KEY;
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int write_ret = av_interleaved_write_frame(context->outfile, pkt);
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if (write_ret != 0) {
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fprintf(stderr, "Error writing audio packet: %s\n", av_err2str(write_ret));
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success = -1;
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break;
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}
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}
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av_packet_free(&pkt);
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av_frame_free(&frame);
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return success;
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}
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# endif /* #ifdef WITH_AUDASPACE */
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/* Allocate a temporary frame */
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static AVFrame *alloc_picture(int pix_fmt, int width, int height)
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{
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AVFrame *f;
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uint8_t *buf;
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int size;
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/* allocate space for the struct */
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f = av_frame_alloc();
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if (!f) {
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return NULL;
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}
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size = av_image_get_buffer_size(pix_fmt, width, height, 1);
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/* allocate the actual picture buffer */
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buf = MEM_mallocN(size, "AVFrame buffer");
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if (!buf) {
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free(f);
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return NULL;
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}
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av_image_fill_arrays(f->data, f->linesize, buf, pix_fmt, width, height, 1);
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f->format = pix_fmt;
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f->width = width;
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f->height = height;
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return f;
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}
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/* Get the correct file extensions for the requested format,
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* first is always desired guess_format parameter */
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static const char **get_file_extensions(int format)
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{
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switch (format) {
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case FFMPEG_DV: {
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static const char *rv[] = {".dv", NULL};
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return rv;
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}
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case FFMPEG_MPEG1: {
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static const char *rv[] = {".mpg", ".mpeg", NULL};
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return rv;
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}
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case FFMPEG_MPEG2: {
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static const char *rv[] = {".dvd", ".vob", ".mpg", ".mpeg", NULL};
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return rv;
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}
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case FFMPEG_MPEG4: {
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static const char *rv[] = {".mp4", ".mpg", ".mpeg", NULL};
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return rv;
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}
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case FFMPEG_AVI: {
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static const char *rv[] = {".avi", NULL};
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return rv;
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}
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case FFMPEG_MOV: {
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static const char *rv[] = {".mov", NULL};
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return rv;
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}
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case FFMPEG_H264: {
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/* FIXME: avi for now... */
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static const char *rv[] = {".avi", NULL};
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return rv;
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}
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case FFMPEG_XVID: {
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/* FIXME: avi for now... */
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static const char *rv[] = {".avi", NULL};
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return rv;
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}
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case FFMPEG_FLV: {
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static const char *rv[] = {".flv", NULL};
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return rv;
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}
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case FFMPEG_MKV: {
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static const char *rv[] = {".mkv", NULL};
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return rv;
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}
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case FFMPEG_OGG: {
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static const char *rv[] = {".ogv", ".ogg", NULL};
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return rv;
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}
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case FFMPEG_WEBM: {
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static const char *rv[] = {".webm", NULL};
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return rv;
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}
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case FFMPEG_AV1: {
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static const char *rv[] = {".mp4", ".mkv", NULL};
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return rv;
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}
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default:
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return NULL;
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}
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}
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/* Write a frame to the output file */
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static int write_video_frame(FFMpegContext *context, AVFrame *frame, ReportList *reports)
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{
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int ret, success = 1;
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AVPacket *packet = av_packet_alloc();
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AVCodecContext *c = context->video_codec;
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frame->pts = context->video_time;
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context->video_time++;
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ret = avcodec_send_frame(c, frame);
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if (ret < 0) {
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/* Can't send frame to encoder. This shouldn't happen. */
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fprintf(stderr, "Can't send video frame: %s\n", av_err2str(ret));
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success = -1;
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}
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while (ret >= 0) {
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ret = avcodec_receive_packet(c, packet);
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if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
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/* No more packets available. */
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break;
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}
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if (ret < 0) {
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fprintf(stderr, "Error encoding frame: %s\n", av_err2str(ret));
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break;
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}
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packet->stream_index = context->video_stream->index;
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av_packet_rescale_ts(packet, c->time_base, context->video_stream->time_base);
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# ifdef FFMPEG_USE_DURATION_WORKAROUND
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my_guess_pkt_duration(context->outfile, context->video_stream, packet);
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# endif
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if (av_interleaved_write_frame(context->outfile, packet) != 0) {
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success = -1;
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break;
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}
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}
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if (!success) {
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BKE_report(reports, RPT_ERROR, "Error writing frame");
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PRINT("Error writing frame: %s\n", av_err2str(ret));
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}
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av_packet_free(&packet);
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return success;
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}
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/* read and encode a frame of video from the buffer */
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static AVFrame *generate_video_frame(FFMpegContext *context, const uint8_t *pixels)
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{
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AVCodecParameters *codec = context->video_stream->codecpar;
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int height = codec->height;
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AVFrame *rgb_frame;
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if (context->img_convert_frame != NULL) {
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/* Pixel format conversion is needed. */
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rgb_frame = context->img_convert_frame;
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}
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else {
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/* The output pixel format is Blender's internal pixel format. */
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rgb_frame = context->current_frame;
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}
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/* Copy the Blender pixels into the FFMPEG data-structure, taking care of endianness and flipping
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* the image vertically. */
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int linesize = rgb_frame->linesize[0];
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for (int y = 0; y < height; y++) {
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uint8_t *target = rgb_frame->data[0] + linesize * (height - y - 1);
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const uint8_t *src = pixels + linesize * y;
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# if ENDIAN_ORDER == L_ENDIAN
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memcpy(target, src, linesize);
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# elif ENDIAN_ORDER == B_ENDIAN
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const uint8_t *end = src + linesize;
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while (src != end) {
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target[3] = src[0];
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target[2] = src[1];
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target[1] = src[2];
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target[0] = src[3];
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target += 4;
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src += 4;
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}
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# else
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# error ENDIAN_ORDER should either be L_ENDIAN or B_ENDIAN.
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# endif
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}
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/* Convert to the output pixel format, if it's different that Blender's internal one. */
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if (context->img_convert_frame != NULL) {
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BLI_assert(context->img_convert_ctx != NULL);
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sws_scale(context->img_convert_ctx,
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(const uint8_t *const *)rgb_frame->data,
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rgb_frame->linesize,
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0,
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codec->height,
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context->current_frame->data,
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context->current_frame->linesize);
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}
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return context->current_frame;
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}
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static AVRational calc_time_base(uint den, double num, int codec_id)
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{
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/* Convert the input 'num' to an integer. Simply shift the decimal places until we get an integer
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* (within a floating point error range).
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* For example if we have `den = 3` and `num = 0.1` then the fps is: `den/num = 30` fps.
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* When converting this to a FFMPEG time base, we want num to be an integer.
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* So we simply move the decimal places of both numbers. i.e. `den = 30`, `num = 1`. */
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float eps = FLT_EPSILON;
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const uint DENUM_MAX = (codec_id == AV_CODEC_ID_MPEG4) ? (1UL << 16) - 1 : (1UL << 31) - 1;
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/* Calculate the precision of the initial floating point number. */
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if (num > 1.0) {
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const uint num_integer_bits = log2_floor_u((uint)num);
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/* Formula for calculating the epsilon value: (power of two range) / (pow mantissa bits)
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* For example, a float has 23 mantissa bits and the float value 3.5f as a pow2 range of
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* (4-2=2):
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* (2) / pow2(23) = floating point precision for 3.5f
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*/
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eps = (float)(1 << num_integer_bits) * FLT_EPSILON;
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}
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/* Calculate how many decimal shifts we can do until we run out of precision. */
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const int max_num_shift = fabsf(log10f(eps));
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/* Calculate how many times we can shift the denominator. */
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const int max_den_shift = log10f(DENUM_MAX) - log10f(den);
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const int max_iter = min_ii(max_num_shift, max_den_shift);
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for (int i = 0; i < max_iter && fabs(num - round(num)) > eps; i++) {
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/* Increase the number and denominator until both are integers. */
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num *= 10;
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den *= 10;
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eps *= 10;
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}
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AVRational time_base;
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time_base.den = den;
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time_base.num = (int)num;
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return time_base;
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}
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static const AVCodec *get_av1_encoder(
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FFMpegContext *context, RenderData *rd, AVDictionary **opts, int rectx, int recty)
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{
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/* There are three possible encoders for AV1: `libaom-av1`, librav1e, and `libsvtav1`. librav1e
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* tends to give the best compression quality while `libsvtav1` tends to be the fastest encoder.
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* One of each will be picked based on the preset setting, and if a particular encoder is not
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* available, then use the default returned by FFMpeg. */
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const AVCodec *codec = NULL;
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switch (context->ffmpeg_preset) {
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case FFM_PRESET_BEST:
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/* `libaom-av1` may produce better VMAF-scoring videos in several cases, but there are cases
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* where using a different encoder is desirable, such as in #103849. */
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codec = avcodec_find_encoder_by_name("librav1e");
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if (!codec) {
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/* Fallback to `libaom-av1` if librav1e is not found. */
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codec = avcodec_find_encoder_by_name("libaom-av1");
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}
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break;
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case FFM_PRESET_REALTIME:
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codec = avcodec_find_encoder_by_name("libsvtav1");
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break;
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case FFM_PRESET_GOOD:
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default:
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codec = avcodec_find_encoder_by_name("libaom-av1");
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break;
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}
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/* Use the default AV1 encoder if the specified encoder wasn't found. */
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if (!codec) {
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codec = avcodec_find_encoder(AV_CODEC_ID_AV1);
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}
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/* Apply AV1 encoder specific settings. */
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if (codec) {
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if (STREQ(codec->name, "librav1e")) {
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/* Set "tiles" to 8 to enable multi-threaded encoding. */
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if (rd->threads > 8) {
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ffmpeg_dict_set_int(opts, "tiles", rd->threads);
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}
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else {
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ffmpeg_dict_set_int(opts, "tiles", 8);
|
|
}
|
|
|
|
/* Use a reasonable speed setting based on preset. Speed ranges from 0-10.
|
|
* Must check context->ffmpeg_preset again in case this encoder was selected due to the
|
|
* absence of another. */
|
|
switch (context->ffmpeg_preset) {
|
|
case FFM_PRESET_BEST:
|
|
ffmpeg_dict_set_int(opts, "speed", 4);
|
|
break;
|
|
case FFM_PRESET_REALTIME:
|
|
ffmpeg_dict_set_int(opts, "speed", 10);
|
|
break;
|
|
case FFM_PRESET_GOOD:
|
|
default:
|
|
ffmpeg_dict_set_int(opts, "speed", 6);
|
|
break;
|
|
}
|
|
if (context->ffmpeg_crf >= 0) {
|
|
/* librav1e does not use `-crf`, but uses `-qp` in the range of 0-255.
|
|
* Calculates the roughly equivalent float, and truncates it to an integer. */
|
|
uint qp_value = ((float)context->ffmpeg_crf) * 255.0f / 51.0f;
|
|
if (qp_value > 255) {
|
|
qp_value = 255;
|
|
}
|
|
ffmpeg_dict_set_int(opts, "qp", qp_value);
|
|
}
|
|
/* Set gop_size as rav1e's "--keyint". */
|
|
char buffer[64];
|
|
BLI_snprintf(buffer, sizeof(buffer), "keyint=%d", context->ffmpeg_gop_size);
|
|
av_dict_set(opts, "rav1e-params", buffer, 0);
|
|
}
|
|
else if (STREQ(codec->name, "libsvtav1")) {
|
|
/* Set preset value based on ffmpeg_preset.
|
|
* Must check `context->ffmpeg_preset` again in case this encoder was selected due to the
|
|
* absence of another. */
|
|
switch (context->ffmpeg_preset) {
|
|
case FFM_PRESET_REALTIME:
|
|
ffmpeg_dict_set_int(opts, "preset", 8);
|
|
break;
|
|
case FFM_PRESET_BEST:
|
|
ffmpeg_dict_set_int(opts, "preset", 3);
|
|
break;
|
|
case FFM_PRESET_GOOD:
|
|
default:
|
|
ffmpeg_dict_set_int(opts, "preset", 5);
|
|
break;
|
|
}
|
|
if (context->ffmpeg_crf >= 0) {
|
|
/* `libsvtav1` does not support `crf` until FFmpeg builds since 2022-02-24,
|
|
* use `qp` as fallback. */
|
|
ffmpeg_dict_set_int(opts, "qp", context->ffmpeg_crf);
|
|
}
|
|
}
|
|
else if (STREQ(codec->name, "libaom-av1")) {
|
|
/* Speed up libaom-av1 encoding by enabling multi-threading and setting tiles. */
|
|
ffmpeg_dict_set_int(opts, "row-mt", 1);
|
|
const char *tiles_string = NULL;
|
|
bool tiles_string_is_dynamic = false;
|
|
if (rd->threads > 0) {
|
|
/* See if threads is a square. */
|
|
int threads_sqrt = sqrtf(rd->threads);
|
|
if (threads_sqrt < 4) {
|
|
/* Ensure a default minimum. */
|
|
threads_sqrt = 4;
|
|
}
|
|
if (is_power_of_2_i(threads_sqrt) && threads_sqrt * threads_sqrt == rd->threads) {
|
|
/* Is a square num, therefore just do "sqrt x sqrt" for tiles parameter. */
|
|
int digits = 0;
|
|
for (int t_sqrt_copy = threads_sqrt; t_sqrt_copy > 0; t_sqrt_copy /= 10) {
|
|
++digits;
|
|
}
|
|
/* A char array need only an alignment of 1. */
|
|
char *tiles_string_mut = (char *)calloc(digits * 2 + 2, 1);
|
|
BLI_snprintf(tiles_string_mut, digits * 2 + 2, "%dx%d", threads_sqrt, threads_sqrt);
|
|
tiles_string_is_dynamic = true;
|
|
tiles_string = tiles_string_mut;
|
|
}
|
|
else {
|
|
/* Is not a square num, set greater side based on longer side, or use a square if both
|
|
* sides are equal. */
|
|
int sqrt_p2 = power_of_2_min_i(threads_sqrt);
|
|
if (sqrt_p2 < 2) {
|
|
/* Ensure a default minimum. */
|
|
sqrt_p2 = 2;
|
|
}
|
|
int sqrt_p2_next = power_of_2_min_i((int)rd->threads / sqrt_p2);
|
|
if (sqrt_p2_next < 1) {
|
|
sqrt_p2_next = 1;
|
|
}
|
|
if (sqrt_p2 > sqrt_p2_next) {
|
|
/* Ensure sqrt_p2_next is greater or equal to sqrt_p2. */
|
|
int temp = sqrt_p2;
|
|
sqrt_p2 = sqrt_p2_next;
|
|
sqrt_p2_next = temp;
|
|
}
|
|
int combined_digits = 0;
|
|
for (int sqrt_p2_copy = sqrt_p2; sqrt_p2_copy > 0; sqrt_p2_copy /= 10) {
|
|
++combined_digits;
|
|
}
|
|
for (int sqrt_p2_copy = sqrt_p2_next; sqrt_p2_copy > 0; sqrt_p2_copy /= 10) {
|
|
++combined_digits;
|
|
}
|
|
/* A char array need only an alignment of 1. */
|
|
char *tiles_string_mut = (char *)calloc(combined_digits + 2, 1);
|
|
if (rectx > recty) {
|
|
BLI_snprintf(tiles_string_mut, combined_digits + 2, "%dx%d", sqrt_p2_next, sqrt_p2);
|
|
}
|
|
else if (rectx < recty) {
|
|
BLI_snprintf(tiles_string_mut, combined_digits + 2, "%dx%d", sqrt_p2, sqrt_p2_next);
|
|
}
|
|
else {
|
|
BLI_snprintf(tiles_string_mut, combined_digits + 2, "%dx%d", sqrt_p2, sqrt_p2);
|
|
}
|
|
tiles_string_is_dynamic = true;
|
|
tiles_string = tiles_string_mut;
|
|
}
|
|
}
|
|
else {
|
|
/* Thread count unknown, default to 8. */
|
|
if (rectx > recty) {
|
|
tiles_string = "4x2";
|
|
}
|
|
else if (rectx < recty) {
|
|
tiles_string = "2x4";
|
|
}
|
|
else {
|
|
tiles_string = "2x2";
|
|
}
|
|
}
|
|
av_dict_set(opts, "tiles", tiles_string, 0);
|
|
if (tiles_string_is_dynamic) {
|
|
free((void *)tiles_string);
|
|
}
|
|
/* libaom-av1 uses "cpu-used" instead of "preset" for defining compression quality.
|
|
* This value is in a range from 0-8. 0 and 8 are extremes, but we will allow 8.
|
|
* Must check context->ffmpeg_preset again in case this encoder was selected due to the
|
|
* absence of another. */
|
|
switch (context->ffmpeg_preset) {
|
|
case FFM_PRESET_REALTIME:
|
|
ffmpeg_dict_set_int(opts, "cpu-used", 8);
|
|
break;
|
|
case FFM_PRESET_BEST:
|
|
ffmpeg_dict_set_int(opts, "cpu-used", 4);
|
|
break;
|
|
case FFM_PRESET_GOOD:
|
|
default:
|
|
ffmpeg_dict_set_int(opts, "cpu-used", 6);
|
|
break;
|
|
}
|
|
|
|
/* CRF related settings is similar to H264 for libaom-av1, so we will rely on those settings
|
|
* applied later. */
|
|
}
|
|
}
|
|
|
|
return codec;
|
|
}
|
|
|
|
/* prepare a video stream for the output file */
|
|
|
|
static AVStream *alloc_video_stream(FFMpegContext *context,
|
|
RenderData *rd,
|
|
int codec_id,
|
|
AVFormatContext *of,
|
|
int rectx,
|
|
int recty,
|
|
char *error,
|
|
int error_size)
|
|
{
|
|
AVStream *st;
|
|
const AVCodec *codec;
|
|
AVDictionary *opts = NULL;
|
|
|
|
error[0] = '\0';
|
|
|
|
st = avformat_new_stream(of, NULL);
|
|
if (!st) {
|
|
return NULL;
|
|
}
|
|
st->id = 0;
|
|
|
|
/* Set up the codec context */
|
|
|
|
if (codec_id == AV_CODEC_ID_AV1) {
|
|
/* Use get_av1_encoder() to get the ideal (hopefully) encoder for AV1 based
|
|
* on given parameters, and also set up opts. */
|
|
codec = get_av1_encoder(context, rd, &opts, rectx, recty);
|
|
}
|
|
else {
|
|
codec = avcodec_find_encoder(codec_id);
|
|
}
|
|
if (!codec) {
|
|
fprintf(stderr, "Couldn't find valid video codec\n");
|
|
context->video_codec = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
context->video_codec = avcodec_alloc_context3(codec);
|
|
AVCodecContext *c = context->video_codec;
|
|
|
|
/* Get some values from the current render settings */
|
|
|
|
c->width = rectx;
|
|
c->height = recty;
|
|
|
|
if (context->ffmpeg_type == FFMPEG_DV && rd->frs_sec != 25) {
|
|
/* FIXME: Really bad hack (tm) for NTSC support */
|
|
c->time_base.den = 2997;
|
|
c->time_base.num = 100;
|
|
}
|
|
else if ((float)((int)rd->frs_sec_base) == rd->frs_sec_base) {
|
|
c->time_base.den = rd->frs_sec;
|
|
c->time_base.num = (int)rd->frs_sec_base;
|
|
}
|
|
else {
|
|
c->time_base = calc_time_base(rd->frs_sec, rd->frs_sec_base, codec_id);
|
|
}
|
|
|
|
/* As per the time-base documentation here:
|
|
* https://www.ffmpeg.org/ffmpeg-codecs.html#Codec-Options
|
|
* We want to set the time base to (1 / fps) for fixed frame rate video.
|
|
* If it is not possible, we want to set the time-base numbers to something as
|
|
* small as possible.
|
|
*/
|
|
if (c->time_base.num != 1) {
|
|
AVRational new_time_base;
|
|
if (av_reduce(
|
|
&new_time_base.num, &new_time_base.den, c->time_base.num, c->time_base.den, INT_MAX)) {
|
|
/* Exact reduction was possible. Use the new value. */
|
|
c->time_base = new_time_base;
|
|
}
|
|
}
|
|
|
|
st->time_base = c->time_base;
|
|
|
|
c->gop_size = context->ffmpeg_gop_size;
|
|
c->max_b_frames = context->ffmpeg_max_b_frames;
|
|
|
|
if (context->ffmpeg_type == FFMPEG_WEBM && context->ffmpeg_crf == 0) {
|
|
ffmpeg_dict_set_int(&opts, "lossless", 1);
|
|
}
|
|
else if (context->ffmpeg_crf >= 0) {
|
|
/* As per https://trac.ffmpeg.org/wiki/Encode/VP9 we must set the bit rate to zero when
|
|
* encoding with vp9 in crf mode.
|
|
* Set this to always be zero for other codecs as well.
|
|
* We don't care about bit rate in crf mode. */
|
|
c->bit_rate = 0;
|
|
ffmpeg_dict_set_int(&opts, "crf", context->ffmpeg_crf);
|
|
}
|
|
else {
|
|
c->bit_rate = context->ffmpeg_video_bitrate * 1000;
|
|
c->rc_max_rate = rd->ffcodecdata.rc_max_rate * 1000;
|
|
c->rc_min_rate = rd->ffcodecdata.rc_min_rate * 1000;
|
|
c->rc_buffer_size = rd->ffcodecdata.rc_buffer_size * 1024;
|
|
}
|
|
|
|
if (context->ffmpeg_preset) {
|
|
/* 'preset' is used by h.264, 'deadline' is used by webm/vp9. I'm not
|
|
* setting those properties conditionally based on the video codec,
|
|
* as the FFmpeg encoder simply ignores unknown settings anyway. */
|
|
char const *preset_name = NULL; /* used by h.264 */
|
|
char const *deadline_name = NULL; /* used by webm/vp9 */
|
|
switch (context->ffmpeg_preset) {
|
|
case FFM_PRESET_GOOD:
|
|
preset_name = "medium";
|
|
deadline_name = "good";
|
|
break;
|
|
case FFM_PRESET_BEST:
|
|
preset_name = "slower";
|
|
deadline_name = "best";
|
|
break;
|
|
case FFM_PRESET_REALTIME:
|
|
preset_name = "superfast";
|
|
deadline_name = "realtime";
|
|
break;
|
|
default:
|
|
printf("Unknown preset number %i, ignoring.\n", context->ffmpeg_preset);
|
|
}
|
|
/* "codec_id != AV_CODEC_ID_AV1" is required due to "preset" already being set by an AV1 codec.
|
|
*/
|
|
if (preset_name != NULL && codec_id != AV_CODEC_ID_AV1) {
|
|
av_dict_set(&opts, "preset", preset_name, 0);
|
|
}
|
|
if (deadline_name != NULL) {
|
|
av_dict_set(&opts, "deadline", deadline_name, 0);
|
|
}
|
|
}
|
|
|
|
/* Be sure to use the correct pixel format(e.g. RGB, YUV) */
|
|
|
|
if (codec->pix_fmts) {
|
|
c->pix_fmt = codec->pix_fmts[0];
|
|
}
|
|
else {
|
|
/* makes HuffYUV happy ... */
|
|
c->pix_fmt = AV_PIX_FMT_YUV422P;
|
|
}
|
|
|
|
if (context->ffmpeg_type == FFMPEG_XVID) {
|
|
/* arghhhh ... */
|
|
c->pix_fmt = AV_PIX_FMT_YUV420P;
|
|
c->codec_tag = (('D' << 24) + ('I' << 16) + ('V' << 8) + 'X');
|
|
}
|
|
|
|
/* Keep lossless encodes in the RGB domain. */
|
|
if (codec_id == AV_CODEC_ID_HUFFYUV) {
|
|
if (rd->im_format.planes == R_IMF_PLANES_RGBA) {
|
|
c->pix_fmt = AV_PIX_FMT_BGRA;
|
|
}
|
|
else {
|
|
c->pix_fmt = AV_PIX_FMT_RGB32;
|
|
}
|
|
}
|
|
|
|
if (codec_id == AV_CODEC_ID_DNXHD) {
|
|
if (rd->ffcodecdata.flags & FFMPEG_LOSSLESS_OUTPUT) {
|
|
/* Set the block decision algorithm to be of the highest quality ("rd" == 2). */
|
|
c->mb_decision = 2;
|
|
}
|
|
}
|
|
|
|
if (codec_id == AV_CODEC_ID_FFV1) {
|
|
c->pix_fmt = AV_PIX_FMT_RGB32;
|
|
}
|
|
|
|
if (codec_id == AV_CODEC_ID_QTRLE) {
|
|
if (rd->im_format.planes == R_IMF_PLANES_RGBA) {
|
|
c->pix_fmt = AV_PIX_FMT_ARGB;
|
|
}
|
|
}
|
|
|
|
if (codec_id == AV_CODEC_ID_VP9 && rd->im_format.planes == R_IMF_PLANES_RGBA) {
|
|
c->pix_fmt = AV_PIX_FMT_YUVA420P;
|
|
}
|
|
else if (ELEM(codec_id, AV_CODEC_ID_H264, AV_CODEC_ID_VP9) && (context->ffmpeg_crf == 0)) {
|
|
/* Use 4:4:4 instead of 4:2:0 pixel format for lossless rendering. */
|
|
c->pix_fmt = AV_PIX_FMT_YUV444P;
|
|
}
|
|
|
|
if (codec_id == AV_CODEC_ID_PNG) {
|
|
if (rd->im_format.planes == R_IMF_PLANES_RGBA) {
|
|
c->pix_fmt = AV_PIX_FMT_RGBA;
|
|
}
|
|
}
|
|
|
|
if (of->oformat->flags & AVFMT_GLOBALHEADER) {
|
|
PRINT("Using global header\n");
|
|
c->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
|
|
}
|
|
|
|
/* xasp & yasp got float lately... */
|
|
|
|
st->sample_aspect_ratio = c->sample_aspect_ratio = av_d2q(((double)rd->xasp / (double)rd->yasp),
|
|
255);
|
|
st->avg_frame_rate = av_inv_q(c->time_base);
|
|
|
|
if (codec->capabilities & AV_CODEC_CAP_OTHER_THREADS) {
|
|
c->thread_count = 0;
|
|
}
|
|
else {
|
|
c->thread_count = BLI_system_thread_count();
|
|
}
|
|
|
|
if (codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) {
|
|
c->thread_type = FF_THREAD_FRAME;
|
|
}
|
|
else if (codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) {
|
|
c->thread_type = FF_THREAD_SLICE;
|
|
}
|
|
|
|
int ret = avcodec_open2(c, codec, &opts);
|
|
|
|
if (ret < 0) {
|
|
fprintf(stderr, "Couldn't initialize video codec: %s\n", av_err2str(ret));
|
|
BLI_strncpy(error, IMB_ffmpeg_last_error(), error_size);
|
|
av_dict_free(&opts);
|
|
avcodec_free_context(&c);
|
|
context->video_codec = NULL;
|
|
return NULL;
|
|
}
|
|
av_dict_free(&opts);
|
|
|
|
/* FFmpeg expects its data in the output pixel format. */
|
|
context->current_frame = alloc_picture(c->pix_fmt, c->width, c->height);
|
|
|
|
if (c->pix_fmt == AV_PIX_FMT_RGBA) {
|
|
/* Output pixel format is the same we use internally, no conversion necessary. */
|
|
context->img_convert_frame = NULL;
|
|
context->img_convert_ctx = NULL;
|
|
}
|
|
else {
|
|
/* Output pixel format is different, allocate frame for conversion. */
|
|
context->img_convert_frame = alloc_picture(AV_PIX_FMT_RGBA, c->width, c->height);
|
|
context->img_convert_ctx = sws_getContext(c->width,
|
|
c->height,
|
|
AV_PIX_FMT_RGBA,
|
|
c->width,
|
|
c->height,
|
|
c->pix_fmt,
|
|
SWS_BICUBIC,
|
|
NULL,
|
|
NULL,
|
|
NULL);
|
|
}
|
|
|
|
avcodec_parameters_from_context(st->codecpar, c);
|
|
|
|
context->video_time = 0.0f;
|
|
|
|
return st;
|
|
}
|
|
|
|
static AVStream *alloc_audio_stream(FFMpegContext *context,
|
|
RenderData *rd,
|
|
int codec_id,
|
|
AVFormatContext *of,
|
|
char *error,
|
|
int error_size)
|
|
{
|
|
AVStream *st;
|
|
const AVCodec *codec;
|
|
|
|
error[0] = '\0';
|
|
|
|
st = avformat_new_stream(of, NULL);
|
|
if (!st) {
|
|
return NULL;
|
|
}
|
|
st->id = 1;
|
|
|
|
codec = avcodec_find_encoder(codec_id);
|
|
if (!codec) {
|
|
fprintf(stderr, "Couldn't find valid audio codec\n");
|
|
context->audio_codec = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
context->audio_codec = avcodec_alloc_context3(codec);
|
|
AVCodecContext *c = context->audio_codec;
|
|
c->thread_count = BLI_system_thread_count();
|
|
c->thread_type = FF_THREAD_SLICE;
|
|
|
|
c->sample_rate = rd->ffcodecdata.audio_mixrate;
|
|
c->bit_rate = context->ffmpeg_audio_bitrate * 1000;
|
|
c->sample_fmt = AV_SAMPLE_FMT_S16;
|
|
|
|
const int num_channels = rd->ffcodecdata.audio_channels;
|
|
int channel_layout_mask = 0;
|
|
switch (rd->ffcodecdata.audio_channels) {
|
|
case FFM_CHANNELS_MONO:
|
|
channel_layout_mask = AV_CH_LAYOUT_MONO;
|
|
break;
|
|
case FFM_CHANNELS_STEREO:
|
|
channel_layout_mask = AV_CH_LAYOUT_STEREO;
|
|
break;
|
|
case FFM_CHANNELS_SURROUND4:
|
|
channel_layout_mask = AV_CH_LAYOUT_QUAD;
|
|
break;
|
|
case FFM_CHANNELS_SURROUND51:
|
|
channel_layout_mask = AV_CH_LAYOUT_5POINT1_BACK;
|
|
break;
|
|
case FFM_CHANNELS_SURROUND71:
|
|
channel_layout_mask = AV_CH_LAYOUT_7POINT1;
|
|
break;
|
|
}
|
|
BLI_assert(channel_layout_mask != 0);
|
|
|
|
# ifdef FFMPEG_USE_OLD_CHANNEL_VARS
|
|
c->channels = num_channels;
|
|
c->channel_layout = channel_layout_mask;
|
|
# else
|
|
av_channel_layout_from_mask(&c->ch_layout, channel_layout_mask);
|
|
# endif
|
|
|
|
if (request_float_audio_buffer(codec_id)) {
|
|
/* mainly for AAC codec which is experimental */
|
|
c->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
|
|
c->sample_fmt = AV_SAMPLE_FMT_FLT;
|
|
}
|
|
|
|
if (codec->sample_fmts) {
|
|
/* Check if the preferred sample format for this codec is supported.
|
|
* this is because, depending on the version of libav,
|
|
* and with the whole ffmpeg/libav fork situation,
|
|
* you have various implementations around.
|
|
* Float samples in particular are not always supported. */
|
|
const enum AVSampleFormat *p = codec->sample_fmts;
|
|
for (; *p != -1; p++) {
|
|
if (*p == c->sample_fmt) {
|
|
break;
|
|
}
|
|
}
|
|
if (*p == -1) {
|
|
/* sample format incompatible with codec. Defaulting to a format known to work */
|
|
c->sample_fmt = codec->sample_fmts[0];
|
|
}
|
|
}
|
|
|
|
if (codec->supported_samplerates) {
|
|
const int *p = codec->supported_samplerates;
|
|
int best = 0;
|
|
int best_dist = INT_MAX;
|
|
for (; *p; p++) {
|
|
int dist = abs(c->sample_rate - *p);
|
|
if (dist < best_dist) {
|
|
best_dist = dist;
|
|
best = *p;
|
|
}
|
|
}
|
|
/* best is the closest supported sample rate (same as selected if best_dist == 0) */
|
|
c->sample_rate = best;
|
|
}
|
|
|
|
if (of->oformat->flags & AVFMT_GLOBALHEADER) {
|
|
c->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
|
|
}
|
|
|
|
int ret = avcodec_open2(c, codec, NULL);
|
|
|
|
if (ret < 0) {
|
|
fprintf(stderr, "Couldn't initialize audio codec: %s\n", av_err2str(ret));
|
|
BLI_strncpy(error, IMB_ffmpeg_last_error(), error_size);
|
|
avcodec_free_context(&c);
|
|
context->audio_codec = NULL;
|
|
return NULL;
|
|
}
|
|
|
|
/* Need to prevent floating point exception when using VORBIS audio codec,
|
|
* initialize this value in the same way as it's done in FFmpeg itself (sergey) */
|
|
c->time_base.num = 1;
|
|
c->time_base.den = c->sample_rate;
|
|
|
|
if (c->frame_size == 0) {
|
|
/* Used to be if ((c->codec_id >= CODEC_ID_PCM_S16LE) && (c->codec_id <= CODEC_ID_PCM_DVD))
|
|
* not sure if that is needed anymore, so let's try out if there are any
|
|
* complaints regarding some FFmpeg versions users might have. */
|
|
context->audio_input_samples = AV_INPUT_BUFFER_MIN_SIZE * 8 / c->bits_per_coded_sample /
|
|
num_channels;
|
|
}
|
|
else {
|
|
context->audio_input_samples = c->frame_size;
|
|
}
|
|
|
|
context->audio_deinterleave = av_sample_fmt_is_planar(c->sample_fmt);
|
|
|
|
context->audio_sample_size = av_get_bytes_per_sample(c->sample_fmt);
|
|
|
|
context->audio_input_buffer = (uint8_t *)av_malloc(context->audio_input_samples * num_channels *
|
|
context->audio_sample_size);
|
|
if (context->audio_deinterleave) {
|
|
context->audio_deinterleave_buffer = (uint8_t *)av_malloc(
|
|
context->audio_input_samples * num_channels * context->audio_sample_size);
|
|
}
|
|
|
|
context->audio_time = 0.0f;
|
|
|
|
avcodec_parameters_from_context(st->codecpar, c);
|
|
|
|
return st;
|
|
}
|
|
/* essential functions -- start, append, end */
|
|
|
|
static void ffmpeg_dict_set_int(AVDictionary **dict, const char *key, int value)
|
|
{
|
|
char buffer[32];
|
|
|
|
BLI_snprintf(buffer, sizeof(buffer), "%d", value);
|
|
|
|
av_dict_set(dict, key, buffer, 0);
|
|
}
|
|
|
|
static void ffmpeg_add_metadata_callback(void *data,
|
|
const char *propname,
|
|
char *propvalue,
|
|
int UNUSED(len))
|
|
{
|
|
AVDictionary **metadata = (AVDictionary **)data;
|
|
av_dict_set(metadata, propname, propvalue, 0);
|
|
}
|
|
|
|
static int start_ffmpeg_impl(FFMpegContext *context,
|
|
struct RenderData *rd,
|
|
int rectx,
|
|
int recty,
|
|
const char *suffix,
|
|
ReportList *reports)
|
|
{
|
|
/* Handle to the output file */
|
|
AVFormatContext *of;
|
|
const AVOutputFormat *fmt;
|
|
char name[FILE_MAX], error[1024];
|
|
const char **exts;
|
|
|
|
context->ffmpeg_type = rd->ffcodecdata.type;
|
|
context->ffmpeg_codec = rd->ffcodecdata.codec;
|
|
context->ffmpeg_audio_codec = rd->ffcodecdata.audio_codec;
|
|
context->ffmpeg_video_bitrate = rd->ffcodecdata.video_bitrate;
|
|
context->ffmpeg_audio_bitrate = rd->ffcodecdata.audio_bitrate;
|
|
context->ffmpeg_gop_size = rd->ffcodecdata.gop_size;
|
|
context->ffmpeg_autosplit = rd->ffcodecdata.flags & FFMPEG_AUTOSPLIT_OUTPUT;
|
|
context->ffmpeg_crf = rd->ffcodecdata.constant_rate_factor;
|
|
context->ffmpeg_preset = rd->ffcodecdata.ffmpeg_preset;
|
|
|
|
if ((rd->ffcodecdata.flags & FFMPEG_USE_MAX_B_FRAMES) != 0) {
|
|
context->ffmpeg_max_b_frames = rd->ffcodecdata.max_b_frames;
|
|
}
|
|
|
|
/* Determine the correct filename */
|
|
ffmpeg_filepath_get(context, name, rd, context->ffmpeg_preview, suffix);
|
|
PRINT(
|
|
"Starting output to %s(ffmpeg)...\n"
|
|
" Using type=%d, codec=%d, audio_codec=%d,\n"
|
|
" video_bitrate=%d, audio_bitrate=%d,\n"
|
|
" gop_size=%d, autosplit=%d\n"
|
|
" render width=%d, render height=%d\n",
|
|
name,
|
|
context->ffmpeg_type,
|
|
context->ffmpeg_codec,
|
|
context->ffmpeg_audio_codec,
|
|
context->ffmpeg_video_bitrate,
|
|
context->ffmpeg_audio_bitrate,
|
|
context->ffmpeg_gop_size,
|
|
context->ffmpeg_autosplit,
|
|
rectx,
|
|
recty);
|
|
|
|
/* Sanity checks for the output file extensions. */
|
|
exts = get_file_extensions(context->ffmpeg_type);
|
|
if (!exts) {
|
|
BKE_report(reports, RPT_ERROR, "No valid formats found");
|
|
return 0;
|
|
}
|
|
|
|
fmt = av_guess_format(NULL, exts[0], NULL);
|
|
if (!fmt) {
|
|
BKE_report(reports, RPT_ERROR, "No valid formats found");
|
|
return 0;
|
|
}
|
|
|
|
of = avformat_alloc_context();
|
|
if (!of) {
|
|
BKE_report(reports, RPT_ERROR, "Can't allocate ffmpeg format context");
|
|
return 0;
|
|
}
|
|
|
|
enum AVCodecID audio_codec = context->ffmpeg_audio_codec;
|
|
enum AVCodecID video_codec = context->ffmpeg_codec;
|
|
|
|
of->url = av_strdup(name);
|
|
/* Check if we need to force change the codec because of file type codec restrictions */
|
|
switch (context->ffmpeg_type) {
|
|
case FFMPEG_OGG:
|
|
video_codec = AV_CODEC_ID_THEORA;
|
|
break;
|
|
case FFMPEG_DV:
|
|
video_codec = AV_CODEC_ID_DVVIDEO;
|
|
break;
|
|
case FFMPEG_MPEG1:
|
|
video_codec = AV_CODEC_ID_MPEG1VIDEO;
|
|
break;
|
|
case FFMPEG_MPEG2:
|
|
video_codec = AV_CODEC_ID_MPEG2VIDEO;
|
|
break;
|
|
case FFMPEG_H264:
|
|
video_codec = AV_CODEC_ID_H264;
|
|
break;
|
|
case FFMPEG_XVID:
|
|
video_codec = AV_CODEC_ID_MPEG4;
|
|
break;
|
|
case FFMPEG_FLV:
|
|
video_codec = AV_CODEC_ID_FLV1;
|
|
break;
|
|
case FFMPEG_AV1:
|
|
video_codec = AV_CODEC_ID_AV1;
|
|
break;
|
|
default:
|
|
/* These containers are not restricted to any specific codec types.
|
|
* Currently we expect these to be .avi, .mov, .mkv, and .mp4.
|
|
*/
|
|
video_codec = context->ffmpeg_codec;
|
|
break;
|
|
}
|
|
|
|
/* Returns after this must 'goto fail;' */
|
|
|
|
# if LIBAVFORMAT_VERSION_MAJOR >= 59
|
|
of->oformat = fmt;
|
|
# else
|
|
/* *DEPRECATED* 2022/08/01 For FFMPEG (<5.0) remove this else branch and the `ifdef` above. */
|
|
of->oformat = (AVOutputFormat *)fmt;
|
|
# endif
|
|
|
|
if (video_codec == AV_CODEC_ID_DVVIDEO) {
|
|
if (rectx != 720) {
|
|
BKE_report(reports, RPT_ERROR, "Render width has to be 720 pixels for DV!");
|
|
goto fail;
|
|
}
|
|
if (rd->frs_sec != 25 && recty != 480) {
|
|
BKE_report(reports, RPT_ERROR, "Render height has to be 480 pixels for DV-NTSC!");
|
|
goto fail;
|
|
}
|
|
if (rd->frs_sec == 25 && recty != 576) {
|
|
BKE_report(reports, RPT_ERROR, "Render height has to be 576 pixels for DV-PAL!");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (context->ffmpeg_type == FFMPEG_DV) {
|
|
audio_codec = AV_CODEC_ID_PCM_S16LE;
|
|
if (context->ffmpeg_audio_codec != AV_CODEC_ID_NONE &&
|
|
rd->ffcodecdata.audio_mixrate != 48000 && rd->ffcodecdata.audio_channels != 2) {
|
|
BKE_report(reports, RPT_ERROR, "FFMPEG only supports 48khz / stereo audio for DV!");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (video_codec != AV_CODEC_ID_NONE) {
|
|
context->video_stream = alloc_video_stream(
|
|
context, rd, video_codec, of, rectx, recty, error, sizeof(error));
|
|
PRINT("alloc video stream %p\n", context->video_stream);
|
|
if (!context->video_stream) {
|
|
if (error[0]) {
|
|
BKE_report(reports, RPT_ERROR, error);
|
|
PRINT("Video stream error: %s\n", error);
|
|
}
|
|
else {
|
|
BKE_report(reports, RPT_ERROR, "Error initializing video stream");
|
|
PRINT("Error initializing video stream");
|
|
}
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (context->ffmpeg_audio_codec != AV_CODEC_ID_NONE) {
|
|
context->audio_stream = alloc_audio_stream(context, rd, audio_codec, of, error, sizeof(error));
|
|
if (!context->audio_stream) {
|
|
if (error[0]) {
|
|
BKE_report(reports, RPT_ERROR, error);
|
|
PRINT("Audio stream error: %s\n", error);
|
|
}
|
|
else {
|
|
BKE_report(reports, RPT_ERROR, "Error initializing audio stream");
|
|
PRINT("Error initializing audio stream");
|
|
}
|
|
goto fail;
|
|
}
|
|
}
|
|
if (!(fmt->flags & AVFMT_NOFILE)) {
|
|
if (avio_open(&of->pb, name, AVIO_FLAG_WRITE) < 0) {
|
|
BKE_report(reports, RPT_ERROR, "Could not open file for writing");
|
|
PRINT("Could not open file for writing\n");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (context->stamp_data != NULL) {
|
|
BKE_stamp_info_callback(
|
|
&of->metadata, context->stamp_data, ffmpeg_add_metadata_callback, false);
|
|
}
|
|
|
|
int ret = avformat_write_header(of, NULL);
|
|
if (ret < 0) {
|
|
BKE_report(reports,
|
|
RPT_ERROR,
|
|
"Could not initialize streams, probably unsupported codec combination");
|
|
PRINT("Could not write media header: %s\n", av_err2str(ret));
|
|
goto fail;
|
|
}
|
|
|
|
context->outfile = of;
|
|
av_dump_format(of, 0, name, 1);
|
|
|
|
return 1;
|
|
|
|
fail:
|
|
if (of->pb) {
|
|
avio_close(of->pb);
|
|
}
|
|
|
|
if (context->video_stream) {
|
|
context->video_stream = NULL;
|
|
}
|
|
|
|
if (context->audio_stream) {
|
|
context->audio_stream = NULL;
|
|
}
|
|
|
|
avformat_free_context(of);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Writes any delayed frames in the encoder. This function is called before
|
|
* closing the encoder.
|
|
*
|
|
* <p>
|
|
* Since an encoder may use both past and future frames to predict
|
|
* inter-frames (H.264 B-frames, for example), it can output the frames
|
|
* in a different order from the one it was given.
|
|
* For example, when sending frames 1, 2, 3, 4 to the encoder, it may write
|
|
* them in the order 1, 4, 2, 3 - first the two frames used for prediction,
|
|
* and then the bidirectionally-predicted frames. What this means in practice
|
|
* is that the encoder may not immediately produce one output frame for each
|
|
* input frame. These delayed frames must be flushed before we close the
|
|
* stream. We do this by calling avcodec_encode_video with NULL for the last
|
|
* parameter.
|
|
* </p>
|
|
*/
|
|
static void flush_ffmpeg(AVCodecContext *c, AVStream *stream, AVFormatContext *outfile)
|
|
{
|
|
AVPacket *packet = av_packet_alloc();
|
|
|
|
avcodec_send_frame(c, NULL);
|
|
|
|
/* Get the packets frames. */
|
|
int ret = 1;
|
|
while (ret >= 0) {
|
|
ret = avcodec_receive_packet(c, packet);
|
|
|
|
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
|
|
/* No more packets to flush. */
|
|
break;
|
|
}
|
|
if (ret < 0) {
|
|
fprintf(stderr, "Error encoding delayed frame: %s\n", av_err2str(ret));
|
|
break;
|
|
}
|
|
|
|
packet->stream_index = stream->index;
|
|
av_packet_rescale_ts(packet, c->time_base, stream->time_base);
|
|
# ifdef FFMPEG_USE_DURATION_WORKAROUND
|
|
my_guess_pkt_duration(outfile, stream, packet);
|
|
# endif
|
|
|
|
int write_ret = av_interleaved_write_frame(outfile, packet);
|
|
if (write_ret != 0) {
|
|
fprintf(stderr, "Error writing delayed frame: %s\n", av_err2str(write_ret));
|
|
break;
|
|
}
|
|
}
|
|
|
|
av_packet_free(&packet);
|
|
}
|
|
|
|
/* **********************************************************************
|
|
* * public interface
|
|
* ********************************************************************** */
|
|
|
|
/* Get the output filename-- similar to the other output formats */
|
|
static void ffmpeg_filepath_get(
|
|
FFMpegContext *context, char *string, const RenderData *rd, bool preview, const char *suffix)
|
|
{
|
|
char autosplit[20];
|
|
|
|
const char **exts = get_file_extensions(rd->ffcodecdata.type);
|
|
const char **fe = exts;
|
|
int sfra, efra;
|
|
|
|
if (!string || !exts) {
|
|
return;
|
|
}
|
|
|
|
if (preview) {
|
|
sfra = rd->psfra;
|
|
efra = rd->pefra;
|
|
}
|
|
else {
|
|
sfra = rd->sfra;
|
|
efra = rd->efra;
|
|
}
|
|
|
|
strcpy(string, rd->pic);
|
|
BLI_path_abs(string, BKE_main_blendfile_path_from_global());
|
|
|
|
BLI_make_existing_file(string);
|
|
|
|
autosplit[0] = '\0';
|
|
|
|
if ((rd->ffcodecdata.flags & FFMPEG_AUTOSPLIT_OUTPUT) != 0) {
|
|
if (context) {
|
|
BLI_snprintf(autosplit, sizeof(autosplit), "_%03d", context->ffmpeg_autosplit_count);
|
|
}
|
|
}
|
|
|
|
if (rd->scemode & R_EXTENSION) {
|
|
while (*fe) {
|
|
if (BLI_strcasecmp(string + strlen(string) - strlen(*fe), *fe) == 0) {
|
|
break;
|
|
}
|
|
fe++;
|
|
}
|
|
|
|
if (*fe == NULL) {
|
|
strcat(string, autosplit);
|
|
|
|
BLI_path_frame_range(string, sfra, efra, 4);
|
|
strcat(string, *exts);
|
|
}
|
|
else {
|
|
*(string + strlen(string) - strlen(*fe)) = '\0';
|
|
strcat(string, autosplit);
|
|
strcat(string, *fe);
|
|
}
|
|
}
|
|
else {
|
|
if (BLI_path_frame_check_chars(string)) {
|
|
BLI_path_frame_range(string, sfra, efra, 4);
|
|
}
|
|
|
|
strcat(string, autosplit);
|
|
}
|
|
|
|
BLI_path_suffix(string, FILE_MAX, suffix, "");
|
|
}
|
|
|
|
void BKE_ffmpeg_filepath_get(char *string, const RenderData *rd, bool preview, const char *suffix)
|
|
{
|
|
ffmpeg_filepath_get(NULL, string, rd, preview, suffix);
|
|
}
|
|
|
|
int BKE_ffmpeg_start(void *context_v,
|
|
const struct Scene *scene,
|
|
RenderData *rd,
|
|
int rectx,
|
|
int recty,
|
|
ReportList *reports,
|
|
bool preview,
|
|
const char *suffix)
|
|
{
|
|
int success;
|
|
FFMpegContext *context = context_v;
|
|
|
|
context->ffmpeg_autosplit_count = 0;
|
|
context->ffmpeg_preview = preview;
|
|
context->stamp_data = BKE_stamp_info_from_scene_static(scene);
|
|
|
|
success = start_ffmpeg_impl(context, rd, rectx, recty, suffix, reports);
|
|
# ifdef WITH_AUDASPACE
|
|
if (context->audio_stream) {
|
|
AVCodecContext *c = context->audio_codec;
|
|
|
|
AUD_DeviceSpecs specs;
|
|
# ifdef FFMPEG_USE_OLD_CHANNEL_VARS
|
|
specs.channels = c->channels;
|
|
# else
|
|
specs.channels = c->ch_layout.nb_channels;
|
|
# endif
|
|
|
|
switch (av_get_packed_sample_fmt(c->sample_fmt)) {
|
|
case AV_SAMPLE_FMT_U8:
|
|
specs.format = AUD_FORMAT_U8;
|
|
break;
|
|
case AV_SAMPLE_FMT_S16:
|
|
specs.format = AUD_FORMAT_S16;
|
|
break;
|
|
case AV_SAMPLE_FMT_S32:
|
|
specs.format = AUD_FORMAT_S32;
|
|
break;
|
|
case AV_SAMPLE_FMT_FLT:
|
|
specs.format = AUD_FORMAT_FLOAT32;
|
|
break;
|
|
case AV_SAMPLE_FMT_DBL:
|
|
specs.format = AUD_FORMAT_FLOAT64;
|
|
break;
|
|
default:
|
|
return -31415;
|
|
}
|
|
|
|
specs.rate = rd->ffcodecdata.audio_mixrate;
|
|
context->audio_mixdown_device = BKE_sound_mixdown(
|
|
scene, specs, preview ? rd->psfra : rd->sfra, rd->ffcodecdata.audio_volume);
|
|
}
|
|
# endif
|
|
return success;
|
|
}
|
|
|
|
static void end_ffmpeg_impl(FFMpegContext *context, int is_autosplit);
|
|
|
|
# ifdef WITH_AUDASPACE
|
|
static void write_audio_frames(FFMpegContext *context, double to_pts)
|
|
{
|
|
AVCodecContext *c = context->audio_codec;
|
|
|
|
while (context->audio_stream) {
|
|
if ((context->audio_time_total >= to_pts) || !write_audio_frame(context)) {
|
|
break;
|
|
}
|
|
context->audio_time_total += (double)context->audio_input_samples / (double)c->sample_rate;
|
|
context->audio_time += (double)context->audio_input_samples / (double)c->sample_rate;
|
|
}
|
|
}
|
|
# endif
|
|
|
|
int BKE_ffmpeg_append(void *context_v,
|
|
RenderData *rd,
|
|
int start_frame,
|
|
int frame,
|
|
int *pixels,
|
|
int rectx,
|
|
int recty,
|
|
const char *suffix,
|
|
ReportList *reports)
|
|
{
|
|
FFMpegContext *context = context_v;
|
|
AVFrame *avframe;
|
|
int success = 1;
|
|
|
|
PRINT("Writing frame %i, render width=%d, render height=%d\n", frame, rectx, recty);
|
|
|
|
if (context->video_stream) {
|
|
avframe = generate_video_frame(context, (uchar *)pixels);
|
|
success = (avframe && write_video_frame(context, avframe, reports));
|
|
# ifdef WITH_AUDASPACE
|
|
/* Add +1 frame because we want to encode audio up until the next video frame. */
|
|
write_audio_frames(
|
|
context, (frame - start_frame + 1) / (((double)rd->frs_sec) / (double)rd->frs_sec_base));
|
|
# else
|
|
UNUSED_VARS(start_frame);
|
|
# endif
|
|
|
|
if (context->ffmpeg_autosplit) {
|
|
if (avio_tell(context->outfile->pb) > FFMPEG_AUTOSPLIT_SIZE) {
|
|
end_ffmpeg_impl(context, true);
|
|
context->ffmpeg_autosplit_count++;
|
|
|
|
success &= start_ffmpeg_impl(context, rd, rectx, recty, suffix, reports);
|
|
}
|
|
}
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
static void end_ffmpeg_impl(FFMpegContext *context, int is_autosplit)
|
|
{
|
|
PRINT("Closing ffmpeg...\n");
|
|
|
|
# ifdef WITH_AUDASPACE
|
|
if (is_autosplit == false) {
|
|
if (context->audio_mixdown_device) {
|
|
AUD_Device_free(context->audio_mixdown_device);
|
|
context->audio_mixdown_device = NULL;
|
|
}
|
|
}
|
|
# else
|
|
UNUSED_VARS(is_autosplit);
|
|
# endif
|
|
|
|
if (context->video_stream) {
|
|
PRINT("Flushing delayed video frames...\n");
|
|
flush_ffmpeg(context->video_codec, context->video_stream, context->outfile);
|
|
}
|
|
|
|
if (context->audio_stream) {
|
|
PRINT("Flushing delayed audio frames...\n");
|
|
flush_ffmpeg(context->audio_codec, context->audio_stream, context->outfile);
|
|
}
|
|
|
|
if (context->outfile) {
|
|
av_write_trailer(context->outfile);
|
|
}
|
|
|
|
/* Close the video codec */
|
|
|
|
if (context->video_stream != NULL) {
|
|
PRINT("zero video stream %p\n", context->video_stream);
|
|
context->video_stream = NULL;
|
|
}
|
|
|
|
if (context->audio_stream != NULL) {
|
|
context->audio_stream = NULL;
|
|
}
|
|
|
|
/* free the temp buffer */
|
|
if (context->current_frame != NULL) {
|
|
delete_picture(context->current_frame);
|
|
context->current_frame = NULL;
|
|
}
|
|
if (context->img_convert_frame != NULL) {
|
|
delete_picture(context->img_convert_frame);
|
|
context->img_convert_frame = NULL;
|
|
}
|
|
|
|
if (context->outfile != NULL && context->outfile->oformat) {
|
|
if (!(context->outfile->oformat->flags & AVFMT_NOFILE)) {
|
|
avio_close(context->outfile->pb);
|
|
}
|
|
}
|
|
|
|
if (context->video_codec != NULL) {
|
|
avcodec_free_context(&context->video_codec);
|
|
context->video_codec = NULL;
|
|
}
|
|
if (context->audio_codec != NULL) {
|
|
avcodec_free_context(&context->audio_codec);
|
|
context->audio_codec = NULL;
|
|
}
|
|
|
|
if (context->outfile != NULL) {
|
|
avformat_free_context(context->outfile);
|
|
context->outfile = NULL;
|
|
}
|
|
if (context->audio_input_buffer != NULL) {
|
|
av_free(context->audio_input_buffer);
|
|
context->audio_input_buffer = NULL;
|
|
}
|
|
|
|
if (context->audio_deinterleave_buffer != NULL) {
|
|
av_free(context->audio_deinterleave_buffer);
|
|
context->audio_deinterleave_buffer = NULL;
|
|
}
|
|
|
|
if (context->img_convert_ctx != NULL) {
|
|
sws_freeContext(context->img_convert_ctx);
|
|
context->img_convert_ctx = NULL;
|
|
}
|
|
}
|
|
|
|
void BKE_ffmpeg_end(void *context_v)
|
|
{
|
|
FFMpegContext *context = context_v;
|
|
end_ffmpeg_impl(context, false);
|
|
}
|
|
|
|
void BKE_ffmpeg_preset_set(RenderData *rd, int preset)
|
|
{
|
|
bool is_ntsc = (rd->frs_sec != 25);
|
|
|
|
switch (preset) {
|
|
case FFMPEG_PRESET_VCD:
|
|
rd->ffcodecdata.type = FFMPEG_MPEG1;
|
|
rd->ffcodecdata.video_bitrate = 1150;
|
|
rd->xsch = 352;
|
|
rd->ysch = is_ntsc ? 240 : 288;
|
|
rd->ffcodecdata.gop_size = is_ntsc ? 18 : 15;
|
|
rd->ffcodecdata.rc_max_rate = 1150;
|
|
rd->ffcodecdata.rc_min_rate = 1150;
|
|
rd->ffcodecdata.rc_buffer_size = 40 * 8;
|
|
rd->ffcodecdata.mux_packet_size = 2324;
|
|
rd->ffcodecdata.mux_rate = 2352 * 75 * 8;
|
|
break;
|
|
|
|
case FFMPEG_PRESET_SVCD:
|
|
rd->ffcodecdata.type = FFMPEG_MPEG2;
|
|
rd->ffcodecdata.video_bitrate = 2040;
|
|
rd->xsch = 480;
|
|
rd->ysch = is_ntsc ? 480 : 576;
|
|
rd->ffcodecdata.gop_size = is_ntsc ? 18 : 15;
|
|
rd->ffcodecdata.rc_max_rate = 2516;
|
|
rd->ffcodecdata.rc_min_rate = 0;
|
|
rd->ffcodecdata.rc_buffer_size = 224 * 8;
|
|
rd->ffcodecdata.mux_packet_size = 2324;
|
|
rd->ffcodecdata.mux_rate = 0;
|
|
break;
|
|
|
|
case FFMPEG_PRESET_DVD:
|
|
rd->ffcodecdata.type = FFMPEG_MPEG2;
|
|
rd->ffcodecdata.video_bitrate = 6000;
|
|
|
|
# if 0 /* Don't set resolution, see #21351. */
|
|
rd->xsch = 720;
|
|
rd->ysch = isntsc ? 480 : 576;
|
|
# endif
|
|
|
|
rd->ffcodecdata.gop_size = is_ntsc ? 18 : 15;
|
|
rd->ffcodecdata.rc_max_rate = 9000;
|
|
rd->ffcodecdata.rc_min_rate = 0;
|
|
rd->ffcodecdata.rc_buffer_size = 224 * 8;
|
|
rd->ffcodecdata.mux_packet_size = 2048;
|
|
rd->ffcodecdata.mux_rate = 10080000;
|
|
break;
|
|
|
|
case FFMPEG_PRESET_DV:
|
|
rd->ffcodecdata.type = FFMPEG_DV;
|
|
rd->xsch = 720;
|
|
rd->ysch = is_ntsc ? 480 : 576;
|
|
break;
|
|
|
|
case FFMPEG_PRESET_H264:
|
|
rd->ffcodecdata.type = FFMPEG_AVI;
|
|
rd->ffcodecdata.codec = AV_CODEC_ID_H264;
|
|
rd->ffcodecdata.video_bitrate = 6000;
|
|
rd->ffcodecdata.gop_size = is_ntsc ? 18 : 15;
|
|
rd->ffcodecdata.rc_max_rate = 9000;
|
|
rd->ffcodecdata.rc_min_rate = 0;
|
|
rd->ffcodecdata.rc_buffer_size = 224 * 8;
|
|
rd->ffcodecdata.mux_packet_size = 2048;
|
|
rd->ffcodecdata.mux_rate = 10080000;
|
|
|
|
break;
|
|
|
|
case FFMPEG_PRESET_THEORA:
|
|
case FFMPEG_PRESET_XVID:
|
|
if (preset == FFMPEG_PRESET_XVID) {
|
|
rd->ffcodecdata.type = FFMPEG_AVI;
|
|
rd->ffcodecdata.codec = AV_CODEC_ID_MPEG4;
|
|
}
|
|
else if (preset == FFMPEG_PRESET_THEORA) {
|
|
rd->ffcodecdata.type = FFMPEG_OGG; /* XXX broken */
|
|
rd->ffcodecdata.codec = AV_CODEC_ID_THEORA;
|
|
}
|
|
|
|
rd->ffcodecdata.video_bitrate = 6000;
|
|
rd->ffcodecdata.gop_size = is_ntsc ? 18 : 15;
|
|
rd->ffcodecdata.rc_max_rate = 9000;
|
|
rd->ffcodecdata.rc_min_rate = 0;
|
|
rd->ffcodecdata.rc_buffer_size = 224 * 8;
|
|
rd->ffcodecdata.mux_packet_size = 2048;
|
|
rd->ffcodecdata.mux_rate = 10080000;
|
|
break;
|
|
case FFMPEG_PRESET_AV1:
|
|
rd->ffcodecdata.type = FFMPEG_AV1;
|
|
rd->ffcodecdata.codec = AV_CODEC_ID_AV1;
|
|
rd->ffcodecdata.video_bitrate = 6000;
|
|
rd->ffcodecdata.gop_size = is_ntsc ? 18 : 15;
|
|
rd->ffcodecdata.rc_max_rate = 9000;
|
|
rd->ffcodecdata.rc_min_rate = 0;
|
|
rd->ffcodecdata.rc_buffer_size = 224 * 8;
|
|
rd->ffcodecdata.mux_packet_size = 2048;
|
|
rd->ffcodecdata.mux_rate = 10080000;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
void BKE_ffmpeg_image_type_verify(RenderData *rd, const ImageFormatData *imf)
|
|
{
|
|
int audio = 0;
|
|
|
|
if (imf->imtype == R_IMF_IMTYPE_FFMPEG) {
|
|
if (rd->ffcodecdata.type <= 0 || rd->ffcodecdata.codec <= 0 ||
|
|
rd->ffcodecdata.audio_codec <= 0 || rd->ffcodecdata.video_bitrate <= 1) {
|
|
BKE_ffmpeg_preset_set(rd, FFMPEG_PRESET_H264);
|
|
rd->ffcodecdata.constant_rate_factor = FFM_CRF_MEDIUM;
|
|
rd->ffcodecdata.ffmpeg_preset = FFM_PRESET_GOOD;
|
|
rd->ffcodecdata.type = FFMPEG_MKV;
|
|
}
|
|
if (rd->ffcodecdata.type == FFMPEG_OGG) {
|
|
rd->ffcodecdata.type = FFMPEG_MPEG2;
|
|
}
|
|
|
|
audio = 1;
|
|
}
|
|
else if (imf->imtype == R_IMF_IMTYPE_H264) {
|
|
if (rd->ffcodecdata.codec != AV_CODEC_ID_H264) {
|
|
BKE_ffmpeg_preset_set(rd, FFMPEG_PRESET_H264);
|
|
audio = 1;
|
|
}
|
|
}
|
|
else if (imf->imtype == R_IMF_IMTYPE_XVID) {
|
|
if (rd->ffcodecdata.codec != AV_CODEC_ID_MPEG4) {
|
|
BKE_ffmpeg_preset_set(rd, FFMPEG_PRESET_XVID);
|
|
audio = 1;
|
|
}
|
|
}
|
|
else if (imf->imtype == R_IMF_IMTYPE_THEORA) {
|
|
if (rd->ffcodecdata.codec != AV_CODEC_ID_THEORA) {
|
|
BKE_ffmpeg_preset_set(rd, FFMPEG_PRESET_THEORA);
|
|
audio = 1;
|
|
}
|
|
}
|
|
else if (imf->imtype == R_IMF_IMTYPE_AV1) {
|
|
if (rd->ffcodecdata.codec != AV_CODEC_ID_AV1) {
|
|
BKE_ffmpeg_preset_set(rd, FFMPEG_PRESET_AV1);
|
|
audio = 1;
|
|
}
|
|
}
|
|
|
|
if (audio && rd->ffcodecdata.audio_codec < 0) {
|
|
rd->ffcodecdata.audio_codec = AV_CODEC_ID_NONE;
|
|
rd->ffcodecdata.audio_bitrate = 128;
|
|
}
|
|
}
|
|
|
|
bool BKE_ffmpeg_alpha_channel_is_supported(const RenderData *rd)
|
|
{
|
|
int codec = rd->ffcodecdata.codec;
|
|
|
|
return ELEM(codec,
|
|
AV_CODEC_ID_FFV1,
|
|
AV_CODEC_ID_QTRLE,
|
|
AV_CODEC_ID_PNG,
|
|
AV_CODEC_ID_VP9,
|
|
AV_CODEC_ID_HUFFYUV);
|
|
}
|
|
|
|
void *BKE_ffmpeg_context_create(void)
|
|
{
|
|
FFMpegContext *context;
|
|
|
|
/* new ffmpeg data struct */
|
|
context = MEM_callocN(sizeof(FFMpegContext), "new ffmpeg context");
|
|
|
|
context->ffmpeg_codec = AV_CODEC_ID_MPEG4;
|
|
context->ffmpeg_audio_codec = AV_CODEC_ID_NONE;
|
|
context->ffmpeg_video_bitrate = 1150;
|
|
context->ffmpeg_audio_bitrate = 128;
|
|
context->ffmpeg_gop_size = 12;
|
|
context->ffmpeg_autosplit = 0;
|
|
context->ffmpeg_autosplit_count = 0;
|
|
context->ffmpeg_preview = false;
|
|
context->stamp_data = NULL;
|
|
context->audio_time_total = 0.0;
|
|
|
|
return context;
|
|
}
|
|
|
|
void BKE_ffmpeg_context_free(void *context_v)
|
|
{
|
|
FFMpegContext *context = context_v;
|
|
if (context == NULL) {
|
|
return;
|
|
}
|
|
if (context->stamp_data) {
|
|
MEM_freeN(context->stamp_data);
|
|
}
|
|
MEM_freeN(context);
|
|
}
|
|
|
|
#endif /* WITH_FFMPEG */
|