mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-09-03 06:53:23 +02:00
ffmpeg: factorize process_input() out
Based-on:
commit 0c00fd80ee
Author: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
parent
b7e9eea31f
commit
fc97f8e0e2
329
ffmpeg.c
329
ffmpeg.c
@ -2691,13 +2691,184 @@ static void reset_eagain(void)
|
||||
input_files[i]->eagain = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return
|
||||
* - 0 -- one packet was read and processed
|
||||
* - AVERROR(EAGAIN) -- no packets were available for selected file,
|
||||
* this function should be called again
|
||||
* - AVERROR_EOF -- this function should not be called again
|
||||
*/
|
||||
static int process_input(void)
|
||||
{
|
||||
InputFile *ifile;
|
||||
AVFormatContext *is;
|
||||
InputStream *ist;
|
||||
AVPacket pkt;
|
||||
int ret, i, j;
|
||||
int file_index;
|
||||
|
||||
/* select the stream that we must read now */
|
||||
file_index = select_input_file();
|
||||
/* if none, if is finished */
|
||||
if (file_index == -2) {
|
||||
poll_filters() ;
|
||||
return AVERROR(EAGAIN);
|
||||
}
|
||||
if (file_index < 0) {
|
||||
if (got_eagain()) {
|
||||
reset_eagain();
|
||||
av_usleep(10000);
|
||||
return AVERROR(EAGAIN);
|
||||
}
|
||||
av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
|
||||
return AVERROR_EOF;
|
||||
}
|
||||
ifile = input_files[file_index];
|
||||
|
||||
is = ifile->ctx;
|
||||
ret = get_input_packet(ifile, &pkt);
|
||||
|
||||
if (ret == AVERROR(EAGAIN)) {
|
||||
ifile->eagain = 1;
|
||||
return ret;
|
||||
}
|
||||
if (ret < 0) {
|
||||
if (ret != AVERROR_EOF) {
|
||||
print_error(is->filename, ret);
|
||||
if (exit_on_error)
|
||||
exit_program(1);
|
||||
}
|
||||
ifile->eof_reached = 1;
|
||||
|
||||
for (i = 0; i < ifile->nb_streams; i++) {
|
||||
ist = input_streams[ifile->ist_index + i];
|
||||
if (ist->decoding_needed)
|
||||
output_packet(ist, NULL);
|
||||
poll_filters();
|
||||
}
|
||||
|
||||
if (opt_shortest)
|
||||
return AVERROR_EOF;
|
||||
else
|
||||
return AVERROR(EAGAIN);
|
||||
}
|
||||
|
||||
reset_eagain();
|
||||
|
||||
if (do_pkt_dump) {
|
||||
av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
|
||||
is->streams[pkt.stream_index]);
|
||||
}
|
||||
/* the following test is needed in case new streams appear
|
||||
dynamically in stream : we ignore them */
|
||||
if (pkt.stream_index >= ifile->nb_streams) {
|
||||
report_new_stream(file_index, &pkt);
|
||||
goto discard_packet;
|
||||
}
|
||||
|
||||
ist = input_streams[ifile->ist_index + pkt.stream_index];
|
||||
if (ist->discard)
|
||||
goto discard_packet;
|
||||
|
||||
if(!ist->wrap_correction_done && input_files[file_index]->ctx->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
|
||||
uint64_t stime = av_rescale_q(input_files[file_index]->ctx->start_time, AV_TIME_BASE_Q, ist->st->time_base);
|
||||
uint64_t stime2= stime + (1LL<<ist->st->pts_wrap_bits);
|
||||
ist->wrap_correction_done = 1;
|
||||
if(pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime && pkt.dts - stime > stime2 - pkt.dts) {
|
||||
pkt.dts -= 1LL<<ist->st->pts_wrap_bits;
|
||||
ist->wrap_correction_done = 0;
|
||||
}
|
||||
if(pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime && pkt.pts - stime > stime2 - pkt.pts) {
|
||||
pkt.pts -= 1LL<<ist->st->pts_wrap_bits;
|
||||
ist->wrap_correction_done = 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (pkt.dts != AV_NOPTS_VALUE)
|
||||
pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
|
||||
if (pkt.pts != AV_NOPTS_VALUE)
|
||||
pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
|
||||
|
||||
if (pkt.pts != AV_NOPTS_VALUE)
|
||||
pkt.pts *= ist->ts_scale;
|
||||
if (pkt.dts != AV_NOPTS_VALUE)
|
||||
pkt.dts *= ist->ts_scale;
|
||||
|
||||
if (debug_ts) {
|
||||
av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
|
||||
"next_dts:%s next_dts_time:%s next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%"PRId64"\n",
|
||||
ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
|
||||
av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
|
||||
av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
|
||||
av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
|
||||
av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
|
||||
input_files[ist->file_index]->ts_offset);
|
||||
}
|
||||
|
||||
if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
|
||||
!copy_ts) {
|
||||
int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
|
||||
int64_t delta = pkt_dts - ist->next_dts;
|
||||
if (is->iformat->flags & AVFMT_TS_DISCONT) {
|
||||
if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
|
||||
(delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
|
||||
ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
|
||||
pkt_dts+1<ist->pts){
|
||||
ifile->ts_offset -= delta;
|
||||
av_log(NULL, AV_LOG_DEBUG,
|
||||
"timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
|
||||
delta, ifile->ts_offset);
|
||||
pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
|
||||
if (pkt.pts != AV_NOPTS_VALUE)
|
||||
pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
|
||||
}
|
||||
} else {
|
||||
if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
|
||||
(delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
|
||||
pkt_dts+1<ist->pts){
|
||||
av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
|
||||
pkt.dts = AV_NOPTS_VALUE;
|
||||
}
|
||||
if (pkt.pts != AV_NOPTS_VALUE){
|
||||
int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
|
||||
delta = pkt_pts - ist->next_dts;
|
||||
if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
|
||||
(delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
|
||||
pkt_pts+1<ist->pts) {
|
||||
av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
|
||||
pkt.pts = AV_NOPTS_VALUE;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
sub2video_heartbeat(ist, pkt.pts);
|
||||
|
||||
if ((ret = output_packet(ist, &pkt)) < 0 ||
|
||||
((ret = poll_filters()) < 0 && ret != AVERROR_EOF)) {
|
||||
char buf[128];
|
||||
av_strerror(ret, buf, sizeof(buf));
|
||||
av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
|
||||
ist->file_index, ist->st->index, buf);
|
||||
if (exit_on_error)
|
||||
exit_program(1);
|
||||
av_free_packet(&pkt);
|
||||
return AVERROR(EAGAIN);
|
||||
}
|
||||
|
||||
discard_packet:
|
||||
av_free_packet(&pkt);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* The following code is the main loop of the file converter
|
||||
*/
|
||||
static int transcode(void)
|
||||
{
|
||||
int ret, i;
|
||||
AVFormatContext *is, *os;
|
||||
AVFormatContext *os;
|
||||
OutputStream *ost;
|
||||
InputStream *ist;
|
||||
int64_t timer_start;
|
||||
@ -2718,9 +2889,6 @@ static int transcode(void)
|
||||
#endif
|
||||
|
||||
while (!received_sigterm) {
|
||||
InputFile *ifile;
|
||||
AVPacket pkt;
|
||||
int file_index;
|
||||
int64_t cur_time= av_gettime();
|
||||
|
||||
/* if 'q' pressed, exits */
|
||||
@ -2734,156 +2902,15 @@ static int transcode(void)
|
||||
break;
|
||||
}
|
||||
|
||||
/* select the stream that we must read now */
|
||||
file_index = select_input_file();
|
||||
/* if none, if is finished */
|
||||
if (file_index == -2) {
|
||||
poll_filters() ;
|
||||
continue;
|
||||
}
|
||||
if (file_index < 0) {
|
||||
if (got_eagain()) {
|
||||
reset_eagain();
|
||||
av_usleep(10000);
|
||||
ret = process_input();
|
||||
if (ret < 0) {
|
||||
if (ret == AVERROR(EAGAIN))
|
||||
continue;
|
||||
}
|
||||
av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
|
||||
if (ret == AVERROR_EOF)
|
||||
break;
|
||||
av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
|
||||
break;
|
||||
}
|
||||
ifile = input_files[file_index];
|
||||
|
||||
is = ifile->ctx;
|
||||
ret = get_input_packet(ifile, &pkt);
|
||||
|
||||
if (ret == AVERROR(EAGAIN)) {
|
||||
ifile->eagain = 1;
|
||||
continue;
|
||||
}
|
||||
if (ret < 0) {
|
||||
if (ret != AVERROR_EOF) {
|
||||
print_error(is->filename, ret);
|
||||
if (exit_on_error)
|
||||
exit_program(1);
|
||||
}
|
||||
ifile->eof_reached = 1;
|
||||
|
||||
for (i = 0; i < ifile->nb_streams; i++) {
|
||||
ist = input_streams[ifile->ist_index + i];
|
||||
if (ist->decoding_needed)
|
||||
output_packet(ist, NULL);
|
||||
poll_filters();
|
||||
}
|
||||
|
||||
if (opt_shortest)
|
||||
break;
|
||||
else
|
||||
continue;
|
||||
}
|
||||
|
||||
reset_eagain();
|
||||
|
||||
if (do_pkt_dump) {
|
||||
av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
|
||||
is->streams[pkt.stream_index]);
|
||||
}
|
||||
/* the following test is needed in case new streams appear
|
||||
dynamically in stream : we ignore them */
|
||||
if (pkt.stream_index >= ifile->nb_streams) {
|
||||
report_new_stream(file_index, &pkt);
|
||||
goto discard_packet;
|
||||
}
|
||||
|
||||
ist = input_streams[ifile->ist_index + pkt.stream_index];
|
||||
if (ist->discard)
|
||||
goto discard_packet;
|
||||
|
||||
if(!ist->wrap_correction_done && input_files[file_index]->ctx->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
|
||||
uint64_t stime = av_rescale_q(input_files[file_index]->ctx->start_time, AV_TIME_BASE_Q, ist->st->time_base);
|
||||
uint64_t stime2= stime + (1LL<<ist->st->pts_wrap_bits);
|
||||
ist->wrap_correction_done = 1;
|
||||
if(pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime && pkt.dts - stime > stime2 - pkt.dts) {
|
||||
pkt.dts -= 1LL<<ist->st->pts_wrap_bits;
|
||||
ist->wrap_correction_done = 0;
|
||||
}
|
||||
if(pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime && pkt.pts - stime > stime2 - pkt.pts) {
|
||||
pkt.pts -= 1LL<<ist->st->pts_wrap_bits;
|
||||
ist->wrap_correction_done = 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (pkt.dts != AV_NOPTS_VALUE)
|
||||
pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
|
||||
if (pkt.pts != AV_NOPTS_VALUE)
|
||||
pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
|
||||
|
||||
if (pkt.pts != AV_NOPTS_VALUE)
|
||||
pkt.pts *= ist->ts_scale;
|
||||
if (pkt.dts != AV_NOPTS_VALUE)
|
||||
pkt.dts *= ist->ts_scale;
|
||||
|
||||
if (debug_ts) {
|
||||
av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
|
||||
"next_dts:%s next_dts_time:%s next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%"PRId64"\n",
|
||||
ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
|
||||
av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
|
||||
av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
|
||||
av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
|
||||
av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
|
||||
input_files[ist->file_index]->ts_offset);
|
||||
}
|
||||
|
||||
if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE && !copy_ts) {
|
||||
int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
|
||||
int64_t delta = pkt_dts - ist->next_dts;
|
||||
if (is->iformat->flags & AVFMT_TS_DISCONT) {
|
||||
if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
|
||||
(delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
|
||||
ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
|
||||
pkt_dts+1<ist->pts){
|
||||
ifile->ts_offset -= delta;
|
||||
av_log(NULL, AV_LOG_DEBUG,
|
||||
"timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
|
||||
delta, ifile->ts_offset);
|
||||
pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
|
||||
if (pkt.pts != AV_NOPTS_VALUE)
|
||||
pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
|
||||
}
|
||||
} else {
|
||||
if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
|
||||
(delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
|
||||
pkt_dts+1<ist->pts){
|
||||
av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
|
||||
pkt.dts = AV_NOPTS_VALUE;
|
||||
}
|
||||
if (pkt.pts != AV_NOPTS_VALUE){
|
||||
int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
|
||||
delta = pkt_pts - ist->next_dts;
|
||||
if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
|
||||
(delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
|
||||
pkt_pts+1<ist->pts) {
|
||||
av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
|
||||
pkt.pts = AV_NOPTS_VALUE;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
sub2video_heartbeat(ist, pkt.pts);
|
||||
|
||||
if ((ret = output_packet(ist, &pkt)) < 0 ||
|
||||
((ret = poll_filters()) < 0 && ret != AVERROR_EOF)) {
|
||||
char buf[128];
|
||||
av_strerror(ret, buf, sizeof(buf));
|
||||
av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
|
||||
ist->file_index, ist->st->index, buf);
|
||||
if (exit_on_error)
|
||||
exit_program(1);
|
||||
av_free_packet(&pkt);
|
||||
continue;
|
||||
}
|
||||
|
||||
discard_packet:
|
||||
av_free_packet(&pkt);
|
||||
|
||||
/* dump report by using the output first video and audio streams */
|
||||
print_report(0, timer_start, cur_time);
|
||||
|
Loading…
Reference in New Issue
Block a user