diff options
author | Anton Khirnov <anton@khirnov.net> | 2021-11-10 14:51:48 +0100 |
---|---|---|
committer | Anton Khirnov <anton@khirnov.net> | 2022-04-13 12:07:54 +0200 |
commit | 288aa37387e93deefa66ff01f1ffae1d6a8988e3 (patch) | |
tree | 31981f1754b92a4410d181931b4bb2fab3319cd2 /fftools/ffmpeg.c | |
parent | b1a984cb4956e73e6b2bcc6463f4f1d9ba8b5a29 (diff) |
fftools/ffmpeg: move some muxing-related code into a separate file
This is a first step towards making muxers more independent from the
rest of the code.
Diffstat (limited to 'fftools/ffmpeg.c')
-rw-r--r-- | fftools/ffmpeg.c | 272 |
1 files changed, 7 insertions, 265 deletions
diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c index bc700052b6..47724f7231 100644 --- a/fftools/ffmpeg.c +++ b/fftools/ffmpeg.c @@ -137,9 +137,9 @@ static int nb_frames_dup = 0; static unsigned dup_warning = 1000; static int nb_frames_drop = 0; static int64_t decode_error_stat[2]; -static unsigned nb_output_dumped = 0; +unsigned nb_output_dumped = 0; -static int want_sdp = 1; +int want_sdp = 1; static BenchmarkTimeStamps current_time; AVIOContext *progress_avio = NULL; @@ -345,7 +345,7 @@ static volatile int received_sigterm = 0; static volatile int received_nb_signals = 0; static atomic_int transcode_init_done = ATOMIC_VAR_INIT(0); static volatile int ffmpeg_exited = 0; -static int main_return_code = 0; +int main_return_code = 0; static int64_t copy_ts_first_pts = AV_NOPTS_VALUE; static void @@ -711,159 +711,6 @@ static void update_benchmark(const char *fmt, ...) } } -static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others) -{ - int i; - for (i = 0; i < nb_output_streams; i++) { - OutputStream *ost2 = output_streams[i]; - ost2->finished |= ost == ost2 ? this_stream : others; - } -} - -static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue) -{ - AVFormatContext *s = of->ctx; - AVStream *st = ost->st; - int ret; - - /* - * Audio encoders may split the packets -- #frames in != #packets out. - * But there is no reordering, so we can limit the number of output packets - * by simply dropping them here. - * Counting encoded video frames needs to be done separately because of - * reordering, see do_video_out(). - * Do not count the packet when unqueued because it has been counted when queued. - */ - if (!(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && ost->encoding_needed) && !unqueue) { - if (ost->frame_number >= ost->max_frames) { - av_packet_unref(pkt); - return; - } - ost->frame_number++; - } - - if (!of->header_written) { - AVPacket *tmp_pkt; - /* the muxer is not initialized yet, buffer the packet */ - if (!av_fifo_can_write(ost->muxing_queue)) { - size_t cur_size = av_fifo_can_read(ost->muxing_queue); - unsigned int are_we_over_size = - (ost->muxing_queue_data_size + pkt->size) > ost->muxing_queue_data_threshold; - size_t limit = are_we_over_size ? ost->max_muxing_queue_size : SIZE_MAX; - size_t new_size = FFMIN(2 * cur_size, limit); - - if (new_size <= cur_size) { - av_log(NULL, AV_LOG_ERROR, - "Too many packets buffered for output stream %d:%d.\n", - ost->file_index, ost->st->index); - exit_program(1); - } - ret = av_fifo_grow2(ost->muxing_queue, new_size - cur_size); - if (ret < 0) - exit_program(1); - } - ret = av_packet_make_refcounted(pkt); - if (ret < 0) - exit_program(1); - tmp_pkt = av_packet_alloc(); - if (!tmp_pkt) - exit_program(1); - av_packet_move_ref(tmp_pkt, pkt); - ost->muxing_queue_data_size += tmp_pkt->size; - av_fifo_write(ost->muxing_queue, &tmp_pkt, 1); - return; - } - - if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) || - (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0)) - pkt->pts = pkt->dts = AV_NOPTS_VALUE; - - if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) { - int i; - uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS, - NULL); - ost->quality = sd ? AV_RL32(sd) : -1; - ost->pict_type = sd ? sd[4] : AV_PICTURE_TYPE_NONE; - - for (i = 0; i<FF_ARRAY_ELEMS(ost->error); i++) { - if (sd && i < sd[5]) - ost->error[i] = AV_RL64(sd + 8 + 8*i); - else - ost->error[i] = -1; - } - - if (ost->frame_rate.num && ost->is_cfr) { - if (pkt->duration > 0) - av_log(NULL, AV_LOG_WARNING, "Overriding packet duration by frame rate, this should not happen\n"); - pkt->duration = av_rescale_q(1, av_inv_q(ost->frame_rate), - ost->mux_timebase); - } - } - - av_packet_rescale_ts(pkt, ost->mux_timebase, ost->st->time_base); - - if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) { - if (pkt->dts != AV_NOPTS_VALUE && - pkt->pts != AV_NOPTS_VALUE && - pkt->dts > pkt->pts) { - av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d, replacing by guess\n", - pkt->dts, pkt->pts, - ost->file_index, ost->st->index); - pkt->pts = - pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1 - - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1) - - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1); - } - if ((st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO || st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) && - pkt->dts != AV_NOPTS_VALUE && - ost->last_mux_dts != AV_NOPTS_VALUE) { - int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT); - if (pkt->dts < max) { - int loglevel = max - pkt->dts > 2 || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG; - if (exit_on_error) - loglevel = AV_LOG_ERROR; - av_log(s, loglevel, "Non-monotonous DTS in output stream " - "%d:%d; previous: %"PRId64", current: %"PRId64"; ", - ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts); - if (exit_on_error) { - av_log(NULL, AV_LOG_FATAL, "aborting.\n"); - exit_program(1); - } - av_log(s, loglevel, "changing to %"PRId64". This may result " - "in incorrect timestamps in the output file.\n", - max); - if (pkt->pts >= pkt->dts) - pkt->pts = FFMAX(pkt->pts, max); - pkt->dts = max; - } - } - } - ost->last_mux_dts = pkt->dts; - - ost->data_size += pkt->size; - ost->packets_written++; - - pkt->stream_index = ost->index; - - if (debug_ts) { - av_log(NULL, AV_LOG_INFO, "muxer <- type:%s " - "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s duration:%s duration_time:%s size:%d\n", - av_get_media_type_string(ost->enc_ctx->codec_type), - av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base), - av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base), - av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, &ost->st->time_base), - pkt->size - ); - } - - ret = av_interleaved_write_frame(s, pkt); - if (ret < 0) { - print_error("av_interleaved_write_frame()", ret); - main_return_code = 1; - close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED); - } -} - static void close_output_stream(OutputStream *ost) { OutputFile *of = output_files[ost->file_index]; @@ -898,11 +745,11 @@ static void output_packet(OutputFile *of, AVPacket *pkt, if (ret < 0) goto finish; while ((ret = av_bsf_receive_packet(ost->bsf_ctx, pkt)) >= 0) - write_packet(of, pkt, ost, 0); + of_write_packet(of, pkt, ost, 0); if (ret == AVERROR(EAGAIN)) ret = 0; } else if (!eof) - write_packet(of, pkt, ost, 0); + of_write_packet(of, pkt, ost, 0); finish: if (ret < 0 && ret != AVERROR_EOF) { @@ -2767,59 +2614,6 @@ static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eo return !eof_reached; } -static int print_sdp(void) -{ - char sdp[16384]; - int i; - int j, ret; - AVIOContext *sdp_pb; - AVFormatContext **avc; - - for (i = 0; i < nb_output_files; i++) { - if (!output_files[i]->header_written) - return 0; - } - - avc = av_malloc_array(nb_output_files, sizeof(*avc)); - if (!avc) - exit_program(1); - for (i = 0, j = 0; i < nb_output_files; i++) { - if (!strcmp(output_files[i]->ctx->oformat->name, "rtp")) { - avc[j] = output_files[i]->ctx; - j++; - } - } - - if (!j) { - av_log(NULL, AV_LOG_ERROR, "No output streams in the SDP.\n"); - ret = AVERROR(EINVAL); - goto fail; - } - - ret = av_sdp_create(avc, j, sdp, sizeof(sdp)); - if (ret < 0) - goto fail; - - if (!sdp_filename) { - printf("SDP:\n%s\n", sdp); - fflush(stdout); - } else { - ret = avio_open2(&sdp_pb, sdp_filename, AVIO_FLAG_WRITE, &int_cb, NULL); - if (ret < 0) { - av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", sdp_filename); - goto fail; - } - - avio_print(sdp_pb, sdp); - avio_closep(&sdp_pb); - av_freep(&sdp_filename); - } - -fail: - av_freep(&avc); - return ret; -} - static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts) { InputStream *ist = s->opaque; @@ -2946,58 +2740,6 @@ static int compare_int64(const void *a, const void *b) return FFDIFFSIGN(*(const int64_t *)a, *(const int64_t *)b); } -/* open the muxer when all the streams are initialized */ -static int check_init_output_file(OutputFile *of) -{ - int ret, i; - - for (i = 0; i < of->ctx->nb_streams; i++) { - OutputStream *ost = output_streams[of->ost_index + i]; - if (!ost->initialized) - return 0; - } - - ret = avformat_write_header(of->ctx, &of->opts); - if (ret < 0) { - av_log(NULL, AV_LOG_ERROR, - "Could not write header for output file #%d " - "(incorrect codec parameters ?): %s\n", - of->index, av_err2str(ret)); - return ret; - } - //assert_avoptions(of->opts); - of->header_written = 1; - - av_dump_format(of->ctx, of->index, of->ctx->url, 1); - nb_output_dumped++; - - if (sdp_filename || want_sdp) { - ret = print_sdp(); - if (ret < 0) { - av_log(NULL, AV_LOG_ERROR, "Error writing the SDP.\n"); - return ret; - } - } - - /* flush the muxing queues */ - for (i = 0; i < of->ctx->nb_streams; i++) { - OutputStream *ost = output_streams[of->ost_index + i]; - AVPacket *pkt; - - /* try to improve muxing time_base (only possible if nothing has been written yet) */ - if (!av_fifo_can_read(ost->muxing_queue)) - ost->mux_timebase = ost->st->time_base; - - while (av_fifo_read(ost->muxing_queue, &pkt, 1) >= 0) { - ost->muxing_queue_data_size -= pkt->size; - write_packet(of, pkt, ost, 1); - av_packet_free(&pkt); - } - } - - return 0; -} - static int init_output_bsfs(OutputStream *ost) { AVBSFContext *ctx = ost->bsf_ctx; @@ -3571,7 +3313,7 @@ static int init_output_stream(OutputStream *ost, AVFrame *frame, ost->initialized = 1; - ret = check_init_output_file(output_files[ost->file_index]); + ret = of_check_init(output_files[ost->file_index]); if (ret < 0) return ret; @@ -3674,7 +3416,7 @@ static int transcode_init(void) for (i = 0; i < nb_output_files; i++) { oc = output_files[i]->ctx; if (oc->oformat->flags & AVFMT_NOSTREAMS && oc->nb_streams == 0) { - ret = check_init_output_file(output_files[i]); + ret = of_check_init(output_files[i]); if (ret < 0) goto dump_format; } |