mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
Merge commit '16b0c929621f84983b83b9735ce973acb12723bc'
* commit '16b0c929621f84983b83b9735ce973acb12723bc': avconv: Add loop option. Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
This commit is contained in:
commit
9ccd90626f
@ -253,6 +253,9 @@ Overwrite output files without asking.
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Do not overwrite output files, and exit immediately if a specified
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Do not overwrite output files, and exit immediately if a specified
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output file already exists.
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output file already exists.
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@item -loop @var{number} (@emph{input})
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Set number of times input stream shall be looped.
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@item -c[:@var{stream_specifier}] @var{codec} (@emph{input/output,per-stream})
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@item -c[:@var{stream_specifier}] @var{codec} (@emph{input/output,per-stream})
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@itemx -codec[:@var{stream_specifier}] @var{codec} (@emph{input/output,per-stream})
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@itemx -codec[:@var{stream_specifier}] @var{codec} (@emph{input/output,per-stream})
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Select an encoder (when used before an output file) or a decoder (when used
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Select an encoder (when used before an output file) or a decoder (when used
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108
ffmpeg.c
108
ffmpeg.c
@ -2024,6 +2024,7 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
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decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
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decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
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(AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
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(AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
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(AVRational){1, avctx->sample_rate});
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(AVRational){1, avctx->sample_rate});
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ist->nb_samples = decoded_frame->nb_samples;
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for (i = 0; i < ist->nb_filters; i++) {
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for (i = 0; i < ist->nb_filters; i++) {
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if (i < ist->nb_filters - 1) {
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if (i < ist->nb_filters - 1) {
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f = ist->filter_frame;
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f = ist->filter_frame;
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@ -2261,7 +2262,7 @@ static int send_filter_eof(InputStream *ist)
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}
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}
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/* pkt = NULL means EOF (needed to flush decoder buffers) */
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/* pkt = NULL means EOF (needed to flush decoder buffers) */
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static int process_input_packet(InputStream *ist, const AVPacket *pkt)
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static int process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
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{
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{
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int ret = 0, i;
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int ret = 0, i;
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int got_output = 0;
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int got_output = 0;
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@ -2370,7 +2371,8 @@ static int process_input_packet(InputStream *ist, const AVPacket *pkt)
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}
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}
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/* after flushing, send an EOF on all the filter inputs attached to the stream */
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/* after flushing, send an EOF on all the filter inputs attached to the stream */
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if (!pkt && ist->decoding_needed && !got_output) {
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/* except when looping we need to flush but not to send an EOF */
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if (!pkt && ist->decoding_needed && !got_output && !no_eof) {
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int ret = send_filter_eof(ist);
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int ret = send_filter_eof(ist);
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if (ret < 0) {
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if (ret < 0) {
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av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
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av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
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@ -3606,6 +3608,86 @@ static void reset_eagain(void)
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output_streams[i]->unavailable = 0;
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output_streams[i]->unavailable = 0;
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}
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}
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// set duration to max(tmp, duration) in a proper time base and return duration's time_base
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static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
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AVRational time_base)
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{
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int ret;
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if (!*duration) {
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*duration = tmp;
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return tmp_time_base;
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}
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ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
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if (ret < 0) {
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*duration = tmp;
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return tmp_time_base;
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}
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return time_base;
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}
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static int seek_to_start(InputFile *ifile, AVFormatContext *is)
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{
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InputStream *ist;
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AVCodecContext *avctx;
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int i, ret, has_audio = 0;
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int64_t duration = 0;
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ret = av_seek_frame(is, -1, is->start_time, 0);
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if (ret < 0)
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return ret;
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for (i = 0; i < ifile->nb_streams; i++) {
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ist = input_streams[ifile->ist_index + i];
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avctx = ist->dec_ctx;
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// flush decoders
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if (ist->decoding_needed) {
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process_input_packet(ist, NULL, 1);
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avcodec_flush_buffers(avctx);
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}
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/* duration is the length of the last frame in a stream
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* when audio stream is present we don't care about
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* last video frame length because it's not defined exactly */
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if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
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has_audio = 1;
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}
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for (i = 0; i < ifile->nb_streams; i++) {
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ist = input_streams[ifile->ist_index + i];
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avctx = ist->dec_ctx;
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if (has_audio) {
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if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
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AVRational sample_rate = {1, avctx->sample_rate};
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duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
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} else
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continue;
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} else {
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if (ist->framerate.num) {
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duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
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} else if (ist->st->avg_frame_rate.num) {
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duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
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} else duration = 1;
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}
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if (!ifile->duration)
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ifile->time_base = ist->st->time_base;
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/* the total duration of the stream, max_pts - min_pts is
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* the duration of the stream without the last frame */
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duration += ist->max_pts - ist->min_pts;
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ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
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ifile->time_base);
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}
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ifile->loop--;
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return ret;
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}
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/*
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/*
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* Return
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* Return
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* - 0 -- one packet was read and processed
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* - 0 -- one packet was read and processed
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@ -3620,6 +3702,7 @@ static int process_input(int file_index)
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InputStream *ist;
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InputStream *ist;
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AVPacket pkt;
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AVPacket pkt;
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int ret, i, j;
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int ret, i, j;
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int64_t duration;
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is = ifile->ctx;
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is = ifile->ctx;
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ret = get_input_packet(ifile, &pkt);
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ret = get_input_packet(ifile, &pkt);
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@ -3628,6 +3711,11 @@ static int process_input(int file_index)
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ifile->eagain = 1;
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ifile->eagain = 1;
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return ret;
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return ret;
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}
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}
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if ((ret < 0) && (ifile->loop > 1)) {
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if ((ret = seek_to_start(ifile, is)) < 0)
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return ret;
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ret = get_input_packet(ifile, &pkt);
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}
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if (ret < 0) {
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if (ret < 0) {
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if (ret != AVERROR_EOF) {
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if (ret != AVERROR_EOF) {
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print_error(is->filename, ret);
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print_error(is->filename, ret);
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@ -3638,7 +3726,7 @@ static int process_input(int file_index)
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for (i = 0; i < ifile->nb_streams; i++) {
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for (i = 0; i < ifile->nb_streams; i++) {
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ist = input_streams[ifile->ist_index + i];
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ist = input_streams[ifile->ist_index + i];
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if (ist->decoding_needed) {
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if (ist->decoding_needed) {
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ret = process_input_packet(ist, NULL);
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ret = process_input_packet(ist, NULL, 0);
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if (ret>0)
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if (ret>0)
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return 0;
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return 0;
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}
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}
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@ -3773,6 +3861,16 @@ static int process_input(int file_index)
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pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
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pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
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}
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}
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}
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}
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duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
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if (pkt.pts != AV_NOPTS_VALUE) {
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pkt.pts += duration;
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ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
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ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
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}
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if (pkt.dts != AV_NOPTS_VALUE)
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pkt.dts += duration;
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if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
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if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
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ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
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ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
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@ -3824,7 +3922,7 @@ static int process_input(int file_index)
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sub2video_heartbeat(ist, pkt.pts);
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sub2video_heartbeat(ist, pkt.pts);
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process_input_packet(ist, &pkt);
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process_input_packet(ist, &pkt, 0);
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discard_packet:
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discard_packet:
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av_free_packet(&pkt);
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av_free_packet(&pkt);
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@ -3989,7 +4087,7 @@ static int transcode(void)
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for (i = 0; i < nb_input_streams; i++) {
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for (i = 0; i < nb_input_streams; i++) {
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ist = input_streams[i];
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ist = input_streams[i];
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if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
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if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
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process_input_packet(ist, NULL);
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process_input_packet(ist, NULL, 0);
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}
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}
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}
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}
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flush_encoders();
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flush_encoders();
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10
ffmpeg.h
10
ffmpeg.h
@ -112,6 +112,7 @@ typedef struct OptionsContext {
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/* input options */
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/* input options */
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int64_t input_ts_offset;
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int64_t input_ts_offset;
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int loop;
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int rate_emu;
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int rate_emu;
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int accurate_seek;
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int accurate_seek;
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int thread_queue_size;
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int thread_queue_size;
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@ -272,6 +273,10 @@ typedef struct InputStream {
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int wrap_correction_done;
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int wrap_correction_done;
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int64_t filter_in_rescale_delta_last;
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int64_t filter_in_rescale_delta_last;
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int64_t min_pts; /* pts with the smallest value in a current stream */
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int64_t max_pts; /* pts with the higher value in a current stream */
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int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
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double ts_scale;
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double ts_scale;
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int saw_first_ts;
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int saw_first_ts;
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@ -342,7 +347,12 @@ typedef struct InputFile {
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int eof_reached; /* true if eof reached */
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int eof_reached; /* true if eof reached */
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int eagain; /* true if last read attempt returned EAGAIN */
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int eagain; /* true if last read attempt returned EAGAIN */
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int ist_index; /* index of first stream in input_streams */
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int ist_index; /* index of first stream in input_streams */
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int loop; /* set number of times input stream should be looped */
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int64_t duration; /* actual duration of the longest stream in a file
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at the moment when looping happens */
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AVRational time_base; /* time base of the duration */
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int64_t input_ts_offset;
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int64_t input_ts_offset;
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int64_t ts_offset;
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int64_t ts_offset;
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int64_t last_ts;
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int64_t last_ts;
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int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
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int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
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@ -627,6 +627,9 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
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ist->file_index = nb_input_files;
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ist->file_index = nb_input_files;
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ist->discard = 1;
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ist->discard = 1;
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st->discard = AVDISCARD_ALL;
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st->discard = AVDISCARD_ALL;
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ist->nb_samples = 0;
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ist->min_pts = INT64_MAX;
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ist->max_pts = INT64_MIN;
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ist->ts_scale = 1.0;
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ist->ts_scale = 1.0;
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MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
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MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
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@ -1005,6 +1008,9 @@ static int open_input_file(OptionsContext *o, const char *filename)
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f->nb_streams = ic->nb_streams;
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f->nb_streams = ic->nb_streams;
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f->rate_emu = o->rate_emu;
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f->rate_emu = o->rate_emu;
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f->accurate_seek = o->accurate_seek;
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f->accurate_seek = o->accurate_seek;
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f->loop = o->loop;
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f->duration = 0;
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f->time_base = (AVRational){ 1, 1 };
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#if HAVE_PTHREADS
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#if HAVE_PTHREADS
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f->thread_queue_size = o->thread_queue_size > 0 ? o->thread_queue_size : 8;
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f->thread_queue_size = o->thread_queue_size > 0 ? o->thread_queue_size : 8;
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#endif
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#endif
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@ -3152,6 +3158,8 @@ const OptionDef options[] = {
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{ "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
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{ "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
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OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
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OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
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"extract an attachment into a file", "filename" },
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"extract an attachment into a file", "filename" },
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{ "loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
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OPT_OFFSET, { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
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{ "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
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{ "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
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"print timestamp debugging info" },
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"print timestamp debugging info" },
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{ "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
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{ "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
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