3 * Copyright (c) 2000-2011 The libav developers.
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
32 #include "libavformat/avformat.h"
33 #include "libavdevice/avdevice.h"
34 #include "libswscale/swscale.h"
35 #include "libavresample/avresample.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/channel_layout.h"
38 #include "libavutil/parseutils.h"
39 #include "libavutil/samplefmt.h"
40 #include "libavutil/fifo.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/libm.h"
47 #include "libavutil/imgutils.h"
48 #include "libavutil/time.h"
49 #include "libavformat/os_support.h"
51 # include "libavfilter/avfilter.h"
52 # include "libavfilter/buffersrc.h"
53 # include "libavfilter/buffersink.h"
55 #if HAVE_SYS_RESOURCE_H
57 #include <sys/types.h>
58 #include <sys/resource.h>
59 #elif HAVE_GETPROCESSTIMES
62 #if HAVE_GETPROCESSMEMORYINFO
68 #include <sys/select.h>
80 #include "libavutil/avassert.h"
82 const char program_name[] = "avconv";
83 const int program_birth_year = 2000;
85 static FILE *vstats_file;
87 static int nb_frames_drop = 0;
92 /* signal to input threads that they should exit; set by the main thread */
93 static int transcoding_finished;
96 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
98 InputStream **input_streams = NULL;
99 int nb_input_streams = 0;
100 InputFile **input_files = NULL;
101 int nb_input_files = 0;
103 OutputStream **output_streams = NULL;
104 int nb_output_streams = 0;
105 OutputFile **output_files = NULL;
106 int nb_output_files = 0;
108 FilterGraph **filtergraphs;
111 static void term_exit(void)
113 av_log(NULL, AV_LOG_QUIET, "");
116 static volatile int received_sigterm = 0;
117 static volatile int received_nb_signals = 0;
120 sigterm_handler(int sig)
122 received_sigterm = sig;
123 received_nb_signals++;
127 static void term_init(void)
129 signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
130 signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
132 signal(SIGXCPU, sigterm_handler);
136 static int decode_interrupt_cb(void *ctx)
138 return received_nb_signals > 1;
141 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
143 static void avconv_cleanup(int ret)
147 for (i = 0; i < nb_filtergraphs; i++) {
148 FilterGraph *fg = filtergraphs[i];
149 avfilter_graph_free(&fg->graph);
150 for (j = 0; j < fg->nb_inputs; j++) {
151 av_freep(&fg->inputs[j]->name);
152 av_freep(&fg->inputs[j]);
154 av_freep(&fg->inputs);
155 for (j = 0; j < fg->nb_outputs; j++) {
156 av_freep(&fg->outputs[j]->name);
157 av_freep(&fg->outputs[j]);
159 av_freep(&fg->outputs);
160 av_freep(&fg->graph_desc);
162 av_freep(&filtergraphs[i]);
164 av_freep(&filtergraphs);
167 for (i = 0; i < nb_output_files; i++) {
168 OutputFile *of = output_files[i];
169 AVFormatContext *s = of->ctx;
170 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
172 avformat_free_context(s);
173 av_dict_free(&of->opts);
175 av_freep(&output_files[i]);
177 for (i = 0; i < nb_output_streams; i++) {
178 OutputStream *ost = output_streams[i];
179 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
181 AVBitStreamFilterContext *next = bsfc->next;
182 av_bitstream_filter_close(bsfc);
185 ost->bitstream_filters = NULL;
186 av_frame_free(&ost->filtered_frame);
188 av_parser_close(ost->parser);
190 av_freep(&ost->forced_keyframes);
191 av_freep(&ost->avfilter);
192 av_freep(&ost->logfile_prefix);
194 av_freep(&output_streams[i]);
196 for (i = 0; i < nb_input_files; i++) {
197 avformat_close_input(&input_files[i]->ctx);
198 av_freep(&input_files[i]);
200 for (i = 0; i < nb_input_streams; i++) {
201 InputStream *ist = input_streams[i];
203 av_frame_free(&ist->decoded_frame);
204 av_frame_free(&ist->filter_frame);
205 av_dict_free(&ist->decoder_opts);
206 av_freep(&ist->filters);
207 av_freep(&ist->hwaccel_device);
209 av_freep(&input_streams[i]);
214 av_free(vstats_filename);
216 av_freep(&input_streams);
217 av_freep(&input_files);
218 av_freep(&output_streams);
219 av_freep(&output_files);
223 avformat_network_deinit();
225 if (received_sigterm) {
226 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
227 (int) received_sigterm);
232 void assert_avoptions(AVDictionary *m)
234 AVDictionaryEntry *t;
235 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
236 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
241 static void abort_codec_experimental(AVCodec *c, int encoder)
243 const char *codec_string = encoder ? "encoder" : "decoder";
245 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
246 "results.\nAdd '-strict experimental' if you want to use it.\n",
247 codec_string, c->name);
248 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
249 if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
250 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
251 codec_string, codec->name);
256 * Update the requested input sample format based on the output sample format.
257 * This is currently only used to request float output from decoders which
258 * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
259 * Ideally this will be removed in the future when decoders do not do format
260 * conversion and only output in their native format.
262 static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
265 /* if sample formats match or a decoder sample format has already been
266 requested, just return */
267 if (enc->sample_fmt == dec->sample_fmt ||
268 dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
271 /* if decoder supports more than one output format */
272 if (dec_codec && dec_codec->sample_fmts &&
273 dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
274 dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
275 const enum AVSampleFormat *p;
276 int min_dec = INT_MAX, min_inc = INT_MAX;
277 enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
278 enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
280 /* find a matching sample format in the encoder */
281 for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
282 if (*p == enc->sample_fmt) {
283 dec->request_sample_fmt = *p;
286 enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
287 enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
288 int fmt_diff = 32 * abs(dfmt - efmt);
289 if (av_sample_fmt_is_planar(*p) !=
290 av_sample_fmt_is_planar(enc->sample_fmt))
295 } else if (dfmt > efmt) {
296 if (fmt_diff < min_inc) {
301 if (fmt_diff < min_dec) {
309 /* if none match, provide the one that matches quality closest */
310 dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
314 static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
316 AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
317 AVCodecContext *avctx = ost->st->codec;
321 * Audio encoders may split the packets -- #frames in != #packets out.
322 * But there is no reordering, so we can limit the number of output packets
323 * by simply dropping them here.
324 * Counting encoded video frames needs to be done separately because of
325 * reordering, see do_video_out()
327 if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
328 if (ost->frame_number >= ost->max_frames) {
336 AVPacket new_pkt = *pkt;
337 int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
338 &new_pkt.data, &new_pkt.size,
339 pkt->data, pkt->size,
340 pkt->flags & AV_PKT_FLAG_KEY);
343 new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
344 av_buffer_default_free, NULL, 0);
348 av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
349 bsfc->filter->name, pkt->stream_index,
350 avctx->codec ? avctx->codec->name : "copy");
360 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
361 ost->last_mux_dts != AV_NOPTS_VALUE &&
362 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
363 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
364 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
365 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
367 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
370 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
371 "in incorrect timestamps in the output file.\n",
372 ost->last_mux_dts + 1);
373 pkt->dts = ost->last_mux_dts + 1;
374 if (pkt->pts != AV_NOPTS_VALUE)
375 pkt->pts = FFMAX(pkt->pts, pkt->dts);
377 ost->last_mux_dts = pkt->dts;
379 ost->data_size += pkt->size;
380 ost->packets_written++;
382 pkt->stream_index = ost->index;
383 ret = av_interleaved_write_frame(s, pkt);
385 print_error("av_interleaved_write_frame()", ret);
390 static int check_recording_time(OutputStream *ost)
392 OutputFile *of = output_files[ost->file_index];
394 if (of->recording_time != INT64_MAX &&
395 av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
396 AV_TIME_BASE_Q) >= 0) {
403 static void do_audio_out(AVFormatContext *s, OutputStream *ost,
406 AVCodecContext *enc = ost->st->codec;
410 av_init_packet(&pkt);
414 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
415 frame->pts = ost->sync_opts;
416 ost->sync_opts = frame->pts + frame->nb_samples;
418 ost->samples_encoded += frame->nb_samples;
419 ost->frames_encoded++;
421 if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
422 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
427 if (pkt.pts != AV_NOPTS_VALUE)
428 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
429 if (pkt.dts != AV_NOPTS_VALUE)
430 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
431 if (pkt.duration > 0)
432 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
434 write_frame(s, &pkt, ost);
438 static void do_subtitle_out(AVFormatContext *s,
444 static uint8_t *subtitle_out = NULL;
445 int subtitle_out_max_size = 1024 * 1024;
446 int subtitle_out_size, nb, i;
450 if (pts == AV_NOPTS_VALUE) {
451 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
457 enc = ost->st->codec;
460 subtitle_out = av_malloc(subtitle_out_max_size);
463 /* Note: DVB subtitle need one packet to draw them and one other
464 packet to clear them */
465 /* XXX: signal it in the codec context ? */
466 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
471 for (i = 0; i < nb; i++) {
472 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
473 if (!check_recording_time(ost))
476 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
477 // start_display_time is required to be 0
478 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
479 sub->end_display_time -= sub->start_display_time;
480 sub->start_display_time = 0;
482 ost->frames_encoded++;
484 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
485 subtitle_out_max_size, sub);
486 if (subtitle_out_size < 0) {
487 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
491 av_init_packet(&pkt);
492 pkt.data = subtitle_out;
493 pkt.size = subtitle_out_size;
494 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
495 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
496 /* XXX: the pts correction is handled here. Maybe handling
497 it in the codec would be better */
499 pkt.pts += 90 * sub->start_display_time;
501 pkt.pts += 90 * sub->end_display_time;
503 write_frame(s, &pkt, ost);
507 static void do_video_out(AVFormatContext *s,
512 int ret, format_video_sync;
514 AVCodecContext *enc = ost->st->codec;
518 format_video_sync = video_sync_method;
519 if (format_video_sync == VSYNC_AUTO)
520 format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
521 (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
522 if (format_video_sync != VSYNC_PASSTHROUGH &&
524 in_picture->pts != AV_NOPTS_VALUE &&
525 in_picture->pts < ost->sync_opts) {
527 av_log(NULL, AV_LOG_WARNING,
528 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
529 ost->frame_number, ost->st->index, in_picture->pts);
533 if (in_picture->pts == AV_NOPTS_VALUE)
534 in_picture->pts = ost->sync_opts;
535 ost->sync_opts = in_picture->pts;
538 if (!ost->frame_number)
539 ost->first_pts = in_picture->pts;
541 av_init_packet(&pkt);
545 if (ost->frame_number >= ost->max_frames)
548 if (s->oformat->flags & AVFMT_RAWPICTURE &&
549 enc->codec->id == AV_CODEC_ID_RAWVIDEO) {
550 /* raw pictures are written as AVPicture structure to
551 avoid any copies. We support temporarily the older
553 enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
554 enc->coded_frame->top_field_first = in_picture->top_field_first;
555 pkt.data = (uint8_t *)in_picture;
556 pkt.size = sizeof(AVPicture);
557 pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
558 pkt.flags |= AV_PKT_FLAG_KEY;
560 write_frame(s, &pkt, ost);
564 if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
565 ost->top_field_first >= 0)
566 in_picture->top_field_first = !!ost->top_field_first;
568 in_picture->quality = ost->st->codec->global_quality;
569 if (!enc->me_threshold)
570 in_picture->pict_type = 0;
571 if (ost->forced_kf_index < ost->forced_kf_count &&
572 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
573 in_picture->pict_type = AV_PICTURE_TYPE_I;
574 ost->forced_kf_index++;
577 ost->frames_encoded++;
579 ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
581 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
586 if (pkt.pts != AV_NOPTS_VALUE)
587 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
588 if (pkt.dts != AV_NOPTS_VALUE)
589 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
591 write_frame(s, &pkt, ost);
592 *frame_size = pkt.size;
594 /* if two pass, output log */
595 if (ost->logfile && enc->stats_out) {
596 fprintf(ost->logfile, "%s", enc->stats_out);
602 * For video, number of frames in == number of packets out.
603 * But there may be reordering, so we can't throw away frames on encoder
604 * flush, we need to limit them here, before they go into encoder.
609 static double psnr(double d)
611 return -10.0 * log(d) / log(10.0);
614 static void do_video_stats(OutputStream *ost, int frame_size)
618 double ti1, bitrate, avg_bitrate;
620 /* this is executed just the first time do_video_stats is called */
622 vstats_file = fopen(vstats_filename, "w");
629 enc = ost->st->codec;
630 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
631 frame_number = ost->frame_number;
632 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
633 if (enc->flags&CODEC_FLAG_PSNR)
634 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
636 fprintf(vstats_file,"f_size= %6d ", frame_size);
637 /* compute pts value */
638 ti1 = ost->sync_opts * av_q2d(enc->time_base);
642 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
643 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
644 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
645 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
646 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
651 * Read one frame for lavfi output for ost and encode it.
653 static int poll_filter(OutputStream *ost)
655 OutputFile *of = output_files[ost->file_index];
656 AVFrame *filtered_frame = NULL;
659 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
660 return AVERROR(ENOMEM);
662 filtered_frame = ost->filtered_frame;
664 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
665 !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
666 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
667 ost->st->codec->frame_size);
669 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
674 if (filtered_frame->pts != AV_NOPTS_VALUE) {
675 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
676 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
677 ost->filter->filter->inputs[0]->time_base,
678 ost->st->codec->time_base) -
679 av_rescale_q(start_time,
681 ost->st->codec->time_base);
684 switch (ost->filter->filter->inputs[0]->type) {
685 case AVMEDIA_TYPE_VIDEO:
686 if (!ost->frame_aspect_ratio)
687 ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
689 do_video_out(of->ctx, ost, filtered_frame, &frame_size);
690 if (vstats_filename && frame_size)
691 do_video_stats(ost, frame_size);
693 case AVMEDIA_TYPE_AUDIO:
694 do_audio_out(of->ctx, ost, filtered_frame);
697 // TODO support subtitle filters
701 av_frame_unref(filtered_frame);
707 * Read as many frames from possible from lavfi and encode them.
709 * Always read from the active stream with the lowest timestamp. If no frames
710 * are available for it then return EAGAIN and wait for more input. This way we
711 * can use lavfi sources that generate unlimited amount of frames without memory
714 static int poll_filters(void)
718 while (ret >= 0 && !received_sigterm) {
719 OutputStream *ost = NULL;
720 int64_t min_pts = INT64_MAX;
722 /* choose output stream with the lowest timestamp */
723 for (i = 0; i < nb_output_streams; i++) {
724 int64_t pts = output_streams[i]->sync_opts;
726 if (!output_streams[i]->filter || output_streams[i]->finished)
729 pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
733 ost = output_streams[i];
740 ret = poll_filter(ost);
742 if (ret == AVERROR_EOF) {
743 OutputFile *of = output_files[ost->file_index];
748 for (j = 0; j < of->ctx->nb_streams; j++)
749 output_streams[of->ost_index + j]->finished = 1;
753 } else if (ret == AVERROR(EAGAIN))
760 static void print_final_stats(int64_t total_size)
762 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
763 uint64_t data_size = 0;
764 float percent = -1.0;
767 for (i = 0; i < nb_output_streams; i++) {
768 OutputStream *ost = output_streams[i];
769 switch (ost->st->codec->codec_type) {
770 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
771 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
772 default: other_size += ost->data_size; break;
774 extra_size += ost->st->codec->extradata_size;
775 data_size += ost->data_size;
778 if (data_size && total_size >= data_size)
779 percent = 100.0 * (total_size - data_size) / data_size;
781 av_log(NULL, AV_LOG_INFO, "\n");
782 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
786 extra_size / 1024.0);
788 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
790 av_log(NULL, AV_LOG_INFO, "unknown");
791 av_log(NULL, AV_LOG_INFO, "\n");
793 /* print verbose per-stream stats */
794 for (i = 0; i < nb_input_files; i++) {
795 InputFile *f = input_files[i];
796 uint64_t total_packets = 0, total_size = 0;
798 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
799 i, f->ctx->filename);
801 for (j = 0; j < f->nb_streams; j++) {
802 InputStream *ist = input_streams[f->ist_index + j];
803 enum AVMediaType type = ist->st->codec->codec_type;
805 total_size += ist->data_size;
806 total_packets += ist->nb_packets;
808 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
809 i, j, media_type_string(type));
810 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
811 ist->nb_packets, ist->data_size);
813 if (ist->decoding_needed) {
814 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
815 ist->frames_decoded);
816 if (type == AVMEDIA_TYPE_AUDIO)
817 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
818 av_log(NULL, AV_LOG_VERBOSE, "; ");
821 av_log(NULL, AV_LOG_VERBOSE, "\n");
824 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
825 total_packets, total_size);
828 for (i = 0; i < nb_output_files; i++) {
829 OutputFile *of = output_files[i];
830 uint64_t total_packets = 0, total_size = 0;
832 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
833 i, of->ctx->filename);
835 for (j = 0; j < of->ctx->nb_streams; j++) {
836 OutputStream *ost = output_streams[of->ost_index + j];
837 enum AVMediaType type = ost->st->codec->codec_type;
839 total_size += ost->data_size;
840 total_packets += ost->packets_written;
842 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
843 i, j, media_type_string(type));
844 if (ost->encoding_needed) {
845 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
846 ost->frames_encoded);
847 if (type == AVMEDIA_TYPE_AUDIO)
848 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
849 av_log(NULL, AV_LOG_VERBOSE, "; ");
852 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
853 ost->packets_written, ost->data_size);
855 av_log(NULL, AV_LOG_VERBOSE, "\n");
858 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
859 total_packets, total_size);
863 static void print_report(int is_last_report, int64_t timer_start)
870 int frame_number, vid, i;
871 double bitrate, ti1, pts;
872 static int64_t last_time = -1;
873 static int qp_histogram[52];
875 if (!print_stats && !is_last_report)
878 if (!is_last_report) {
880 /* display the report every 0.5 seconds */
881 cur_time = av_gettime();
882 if (last_time == -1) {
883 last_time = cur_time;
886 if ((cur_time - last_time) < 500000)
888 last_time = cur_time;
892 oc = output_files[0]->ctx;
894 total_size = avio_size(oc->pb);
895 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
896 total_size = avio_tell(oc->pb);
897 if (total_size < 0) {
899 av_strerror(total_size, errbuf, sizeof(errbuf));
900 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
901 "avio_tell() failed: %s\n", errbuf);
908 for (i = 0; i < nb_output_streams; i++) {
910 ost = output_streams[i];
911 enc = ost->st->codec;
912 if (!ost->stream_copy && enc->coded_frame)
913 q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
914 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
915 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
917 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
918 float t = (av_gettime() - timer_start) / 1000000.0;
920 frame_number = ost->frame_number;
921 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
922 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
924 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
928 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
930 for (j = 0; j < 32; j++)
931 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
933 if (enc->flags&CODEC_FLAG_PSNR) {
935 double error, error_sum = 0;
936 double scale, scale_sum = 0;
937 char type[3] = { 'Y','U','V' };
938 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
939 for (j = 0; j < 3; j++) {
940 if (is_last_report) {
941 error = enc->error[j];
942 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
944 error = enc->coded_frame->error[j];
945 scale = enc->width * enc->height * 255.0 * 255.0;
951 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
953 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
957 /* compute min output value */
958 pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
959 if ((pts < ti1) && (pts > 0))
965 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
967 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
968 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
969 (double)total_size / 1024, ti1, bitrate);
972 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
975 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
980 print_final_stats(total_size);
984 static void flush_encoders(void)
988 for (i = 0; i < nb_output_streams; i++) {
989 OutputStream *ost = output_streams[i];
990 AVCodecContext *enc = ost->st->codec;
991 AVFormatContext *os = output_files[ost->file_index]->ctx;
992 int stop_encoding = 0;
994 if (!ost->encoding_needed)
997 if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
999 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
1003 int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
1006 switch (ost->st->codec->codec_type) {
1007 case AVMEDIA_TYPE_AUDIO:
1008 encode = avcodec_encode_audio2;
1011 case AVMEDIA_TYPE_VIDEO:
1012 encode = avcodec_encode_video2;
1022 av_init_packet(&pkt);
1026 ret = encode(enc, &pkt, NULL, &got_packet);
1028 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1031 if (ost->logfile && enc->stats_out) {
1032 fprintf(ost->logfile, "%s", enc->stats_out);
1038 if (pkt.pts != AV_NOPTS_VALUE)
1039 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
1040 if (pkt.dts != AV_NOPTS_VALUE)
1041 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
1042 if (pkt.duration > 0)
1043 pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
1044 write_frame(os, &pkt, ost);
1054 * Check whether a packet from ist should be written into ost at this time
1056 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1058 OutputFile *of = output_files[ost->file_index];
1059 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1061 if (ost->source_index != ist_index)
1064 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1070 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1072 OutputFile *of = output_files[ost->file_index];
1073 InputFile *f = input_files [ist->file_index];
1074 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1075 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
1078 av_init_packet(&opkt);
1080 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1081 !ost->copy_initial_nonkeyframes)
1084 if (of->recording_time != INT64_MAX &&
1085 ist->last_dts >= of->recording_time + start_time) {
1090 if (f->recording_time != INT64_MAX) {
1091 start_time = f->ctx->start_time;
1092 if (f->start_time != AV_NOPTS_VALUE)
1093 start_time += f->start_time;
1094 if (ist->last_dts >= f->recording_time + start_time) {
1100 /* force the input stream PTS */
1101 if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1104 if (pkt->pts != AV_NOPTS_VALUE)
1105 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
1107 opkt.pts = AV_NOPTS_VALUE;
1109 if (pkt->dts == AV_NOPTS_VALUE)
1110 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
1112 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
1113 opkt.dts -= ost_tb_start_time;
1115 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
1116 opkt.flags = pkt->flags;
1118 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1119 if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
1120 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
1121 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
1122 && ost->st->codec->codec_id != AV_CODEC_ID_VC1
1124 if (av_parser_change(ost->parser, ost->st->codec,
1125 &opkt.data, &opkt.size,
1126 pkt->data, pkt->size,
1127 pkt->flags & AV_PKT_FLAG_KEY)) {
1128 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1133 opkt.data = pkt->data;
1134 opkt.size = pkt->size;
1137 write_frame(of->ctx, &opkt, ost);
1140 int guess_input_channel_layout(InputStream *ist)
1142 AVCodecContext *dec = ist->st->codec;
1144 if (!dec->channel_layout) {
1145 char layout_name[256];
1147 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1148 if (!dec->channel_layout)
1150 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1151 dec->channels, dec->channel_layout);
1152 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1153 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1158 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
1160 AVFrame *decoded_frame, *f;
1161 AVCodecContext *avctx = ist->st->codec;
1162 int i, ret, err = 0, resample_changed;
1164 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1165 return AVERROR(ENOMEM);
1166 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1167 return AVERROR(ENOMEM);
1168 decoded_frame = ist->decoded_frame;
1170 ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
1171 if (!*got_output || ret < 0) {
1173 for (i = 0; i < ist->nb_filters; i++)
1174 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1179 ist->samples_decoded += decoded_frame->nb_samples;
1180 ist->frames_decoded++;
1182 /* if the decoder provides a pts, use it instead of the last packet pts.
1183 the decoder could be delaying output by a packet or more. */
1184 if (decoded_frame->pts != AV_NOPTS_VALUE)
1185 ist->next_dts = decoded_frame->pts;
1186 else if (pkt->pts != AV_NOPTS_VALUE)
1187 decoded_frame->pts = pkt->pts;
1188 pkt->pts = AV_NOPTS_VALUE;
1190 resample_changed = ist->resample_sample_fmt != decoded_frame->format ||
1191 ist->resample_channels != avctx->channels ||
1192 ist->resample_channel_layout != decoded_frame->channel_layout ||
1193 ist->resample_sample_rate != decoded_frame->sample_rate;
1194 if (resample_changed) {
1195 char layout1[64], layout2[64];
1197 if (!guess_input_channel_layout(ist)) {
1198 av_log(NULL, AV_LOG_FATAL, "Unable to find default channel "
1199 "layout for Input Stream #%d.%d\n", ist->file_index,
1203 decoded_frame->channel_layout = avctx->channel_layout;
1205 av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels,
1206 ist->resample_channel_layout);
1207 av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels,
1208 decoded_frame->channel_layout);
1210 av_log(NULL, AV_LOG_INFO,
1211 "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n",
1212 ist->file_index, ist->st->index,
1213 ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt),
1214 ist->resample_channels, layout1,
1215 decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format),
1216 avctx->channels, layout2);
1218 ist->resample_sample_fmt = decoded_frame->format;
1219 ist->resample_sample_rate = decoded_frame->sample_rate;
1220 ist->resample_channel_layout = decoded_frame->channel_layout;
1221 ist->resample_channels = avctx->channels;
1223 for (i = 0; i < nb_filtergraphs; i++)
1224 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1225 configure_filtergraph(filtergraphs[i]) < 0) {
1226 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1231 if (decoded_frame->pts != AV_NOPTS_VALUE)
1232 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1234 (AVRational){1, ist->st->codec->sample_rate});
1235 for (i = 0; i < ist->nb_filters; i++) {
1236 if (i < ist->nb_filters - 1) {
1237 f = ist->filter_frame;
1238 err = av_frame_ref(f, decoded_frame);
1244 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1249 av_frame_unref(ist->filter_frame);
1250 av_frame_unref(decoded_frame);
1251 return err < 0 ? err : ret;
1254 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
1256 AVFrame *decoded_frame, *f;
1257 int i, ret = 0, err = 0, resample_changed;
1259 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1260 return AVERROR(ENOMEM);
1261 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1262 return AVERROR(ENOMEM);
1263 decoded_frame = ist->decoded_frame;
1265 ret = avcodec_decode_video2(ist->st->codec,
1266 decoded_frame, got_output, pkt);
1267 if (!*got_output || ret < 0) {
1269 for (i = 0; i < ist->nb_filters; i++)
1270 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
1275 ist->frames_decoded++;
1277 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1278 err = ist->hwaccel_retrieve_data(ist->st->codec, decoded_frame);
1282 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1284 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
1285 decoded_frame->pkt_dts);
1288 if (ist->st->sample_aspect_ratio.num)
1289 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1291 resample_changed = ist->resample_width != decoded_frame->width ||
1292 ist->resample_height != decoded_frame->height ||
1293 ist->resample_pix_fmt != decoded_frame->format;
1294 if (resample_changed) {
1295 av_log(NULL, AV_LOG_INFO,
1296 "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
1297 ist->file_index, ist->st->index,
1298 ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt),
1299 decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
1301 ret = poll_filters();
1302 if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
1303 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
1305 ist->resample_width = decoded_frame->width;
1306 ist->resample_height = decoded_frame->height;
1307 ist->resample_pix_fmt = decoded_frame->format;
1309 for (i = 0; i < nb_filtergraphs; i++)
1310 if (ist_in_filtergraph(filtergraphs[i], ist) &&
1311 configure_filtergraph(filtergraphs[i]) < 0) {
1312 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
1317 for (i = 0; i < ist->nb_filters; i++) {
1318 if (i < ist->nb_filters - 1) {
1319 f = ist->filter_frame;
1320 err = av_frame_ref(f, decoded_frame);
1326 err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
1332 av_frame_unref(ist->filter_frame);
1333 av_frame_unref(decoded_frame);
1334 return err < 0 ? err : ret;
1337 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
1339 AVSubtitle subtitle;
1340 int i, ret = avcodec_decode_subtitle2(ist->st->codec,
1341 &subtitle, got_output, pkt);
1347 ist->frames_decoded++;
1349 for (i = 0; i < nb_output_streams; i++) {
1350 OutputStream *ost = output_streams[i];
1352 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1355 do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
1358 avsubtitle_free(&subtitle);
1362 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1363 static int output_packet(InputStream *ist, const AVPacket *pkt)
1369 if (ist->next_dts == AV_NOPTS_VALUE)
1370 ist->next_dts = ist->last_dts;
1374 av_init_packet(&avpkt);
1382 if (pkt->dts != AV_NOPTS_VALUE)
1383 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1385 // while we have more to decode or while the decoder did output something on EOF
1386 while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
1390 ist->last_dts = ist->next_dts;
1392 if (avpkt.size && avpkt.size != pkt->size &&
1393 !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
1394 av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
1395 "Multiple frames in a packet from stream %d\n", pkt->stream_index);
1396 ist->showed_multi_packet_warning = 1;
1399 switch (ist->st->codec->codec_type) {
1400 case AVMEDIA_TYPE_AUDIO:
1401 ret = decode_audio (ist, &avpkt, &got_output);
1403 case AVMEDIA_TYPE_VIDEO:
1404 ret = decode_video (ist, &avpkt, &got_output);
1406 ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
1407 else if (ist->st->avg_frame_rate.num)
1408 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1410 else if (ist->st->codec->time_base.num != 0) {
1411 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1412 ist->st->codec->ticks_per_frame;
1413 ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
1416 case AVMEDIA_TYPE_SUBTITLE:
1417 ret = transcode_subtitles(ist, &avpkt, &got_output);
1425 // touch data and size only if not EOF
1435 /* handle stream copy */
1436 if (!ist->decoding_needed) {
1437 ist->last_dts = ist->next_dts;
1438 switch (ist->st->codec->codec_type) {
1439 case AVMEDIA_TYPE_AUDIO:
1440 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
1441 ist->st->codec->sample_rate;
1443 case AVMEDIA_TYPE_VIDEO:
1444 if (ist->st->codec->time_base.num != 0) {
1445 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
1446 ist->next_dts += ((int64_t)AV_TIME_BASE *
1447 ist->st->codec->time_base.num * ticks) /
1448 ist->st->codec->time_base.den;
1453 for (i = 0; pkt && i < nb_output_streams; i++) {
1454 OutputStream *ost = output_streams[i];
1456 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1459 do_streamcopy(ist, ost, pkt);
1465 static void print_sdp(void)
1469 AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files);
1473 for (i = 0; i < nb_output_files; i++)
1474 avc[i] = output_files[i]->ctx;
1476 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1477 printf("SDP:\n%s\n", sdp);
1482 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1485 for (i = 0; hwaccels[i].name; i++)
1486 if (hwaccels[i].pix_fmt == pix_fmt)
1487 return &hwaccels[i];
1491 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1493 InputStream *ist = s->opaque;
1494 const enum AVPixelFormat *p;
1497 for (p = pix_fmts; *p != -1; p++) {
1498 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1499 const HWAccel *hwaccel;
1501 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1504 hwaccel = get_hwaccel(*p);
1506 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1507 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1510 ret = hwaccel->init(s);
1512 if (ist->hwaccel_id == hwaccel->id) {
1513 av_log(NULL, AV_LOG_FATAL,
1514 "%s hwaccel requested for input stream #%d:%d, "
1515 "but cannot be initialized.\n", hwaccel->name,
1516 ist->file_index, ist->st->index);
1521 ist->active_hwaccel_id = hwaccel->id;
1522 ist->hwaccel_pix_fmt = *p;
1529 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1531 InputStream *ist = s->opaque;
1533 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1534 return ist->hwaccel_get_buffer(s, frame, flags);
1536 return avcodec_default_get_buffer2(s, frame, flags);
1539 static int init_input_stream(int ist_index, char *error, int error_len)
1542 InputStream *ist = input_streams[ist_index];
1543 if (ist->decoding_needed) {
1544 AVCodec *codec = ist->dec;
1546 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1547 ist->st->codec->codec_id, ist->file_index, ist->st->index);
1548 return AVERROR(EINVAL);
1551 /* update requested sample format for the decoder based on the
1552 corresponding encoder sample format */
1553 for (i = 0; i < nb_output_streams; i++) {
1554 OutputStream *ost = output_streams[i];
1555 if (ost->source_index == ist_index) {
1556 update_sample_fmt(ist->st->codec, codec, ost->st->codec);
1561 ist->st->codec->opaque = ist;
1562 ist->st->codec->get_format = get_format;
1563 ist->st->codec->get_buffer2 = get_buffer;
1564 ist->st->codec->thread_safe_callbacks = 1;
1566 av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0);
1568 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1569 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1570 if ((ret = avcodec_open2(ist->st->codec, codec, &ist->decoder_opts)) < 0) {
1572 if (ret == AVERROR_EXPERIMENTAL)
1573 abort_codec_experimental(codec, 0);
1575 av_strerror(ret, errbuf, sizeof(errbuf));
1577 snprintf(error, error_len,
1578 "Error while opening decoder for input stream "
1580 ist->file_index, ist->st->index, errbuf);
1583 assert_avoptions(ist->decoder_opts);
1586 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1587 ist->next_dts = AV_NOPTS_VALUE;
1588 init_pts_correction(&ist->pts_ctx);
1593 static InputStream *get_input_stream(OutputStream *ost)
1595 if (ost->source_index >= 0)
1596 return input_streams[ost->source_index];
1599 FilterGraph *fg = ost->filter->graph;
1602 for (i = 0; i < fg->nb_inputs; i++)
1603 if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
1604 return fg->inputs[i]->ist;
1610 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1611 AVCodecContext *avctx)
1617 for (p = kf; *p; p++)
1620 ost->forced_kf_count = n;
1621 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1622 if (!ost->forced_kf_pts) {
1623 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1628 for (i = 0; i < n; i++) {
1629 char *next = strchr(p, ',');
1634 t = parse_time_or_die("force_key_frames", p, 1);
1635 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1641 static int transcode_init(void)
1643 int ret = 0, i, j, k;
1644 AVFormatContext *oc;
1650 /* init framerate emulation */
1651 for (i = 0; i < nb_input_files; i++) {
1652 InputFile *ifile = input_files[i];
1653 if (ifile->rate_emu)
1654 for (j = 0; j < ifile->nb_streams; j++)
1655 input_streams[j + ifile->ist_index]->start = av_gettime();
1658 /* output stream init */
1659 for (i = 0; i < nb_output_files; i++) {
1660 oc = output_files[i]->ctx;
1661 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1662 av_dump_format(oc, i, oc->filename, 1);
1663 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
1664 return AVERROR(EINVAL);
1668 /* init complex filtergraphs */
1669 for (i = 0; i < nb_filtergraphs; i++)
1670 if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0)
1673 /* for each output stream, we compute the right encoding parameters */
1674 for (i = 0; i < nb_output_streams; i++) {
1675 AVCodecContext *enc_ctx;
1676 AVCodecContext *dec_ctx = NULL;
1677 ost = output_streams[i];
1678 oc = output_files[ost->file_index]->ctx;
1679 ist = get_input_stream(ost);
1681 if (ost->attachment_filename)
1684 enc_ctx = ost->st->codec;
1687 dec_ctx = ist->st->codec;
1689 ost->st->disposition = ist->st->disposition;
1690 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1691 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1694 if (ost->stream_copy) {
1696 uint64_t extra_size;
1698 av_assert0(ist && !ost->filter);
1700 extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
1702 if (extra_size > INT_MAX) {
1703 return AVERROR(EINVAL);
1706 /* if stream_copy is selected, no need to decode or encode */
1707 enc_ctx->codec_id = dec_ctx->codec_id;
1708 enc_ctx->codec_type = dec_ctx->codec_type;
1710 if (!enc_ctx->codec_tag) {
1711 if (!oc->oformat->codec_tag ||
1712 av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id ||
1713 av_codec_get_tag(oc->oformat->codec_tag, dec_ctx->codec_id) <= 0)
1714 enc_ctx->codec_tag = dec_ctx->codec_tag;
1717 enc_ctx->bit_rate = dec_ctx->bit_rate;
1718 enc_ctx->rc_max_rate = dec_ctx->rc_max_rate;
1719 enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
1720 enc_ctx->field_order = dec_ctx->field_order;
1721 enc_ctx->extradata = av_mallocz(extra_size);
1722 if (!enc_ctx->extradata) {
1723 return AVERROR(ENOMEM);
1725 memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
1726 enc_ctx->extradata_size = dec_ctx->extradata_size;
1728 enc_ctx->time_base = dec_ctx->time_base;
1729 enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
1730 av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
1731 enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
1733 enc_ctx->time_base = ist->st->time_base;
1735 ost->parser = av_parser_init(enc_ctx->codec_id);
1737 switch (enc_ctx->codec_type) {
1738 case AVMEDIA_TYPE_AUDIO:
1739 if (audio_volume != 256) {
1740 av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
1743 enc_ctx->channel_layout = dec_ctx->channel_layout;
1744 enc_ctx->sample_rate = dec_ctx->sample_rate;
1745 enc_ctx->channels = dec_ctx->channels;
1746 enc_ctx->frame_size = dec_ctx->frame_size;
1747 enc_ctx->audio_service_type = dec_ctx->audio_service_type;
1748 enc_ctx->block_align = dec_ctx->block_align;
1750 case AVMEDIA_TYPE_VIDEO:
1751 enc_ctx->pix_fmt = dec_ctx->pix_fmt;
1752 enc_ctx->width = dec_ctx->width;
1753 enc_ctx->height = dec_ctx->height;
1754 enc_ctx->has_b_frames = dec_ctx->has_b_frames;
1755 if (ost->frame_aspect_ratio)
1756 sar = av_d2q(ost->frame_aspect_ratio * enc_ctx->height / enc_ctx->width, 255);
1757 else if (ist->st->sample_aspect_ratio.num)
1758 sar = ist->st->sample_aspect_ratio;
1760 sar = dec_ctx->sample_aspect_ratio;
1761 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar;
1763 case AVMEDIA_TYPE_SUBTITLE:
1764 enc_ctx->width = dec_ctx->width;
1765 enc_ctx->height = dec_ctx->height;
1767 case AVMEDIA_TYPE_DATA:
1768 case AVMEDIA_TYPE_ATTACHMENT:
1775 /* should only happen when a default codec is not present. */
1776 snprintf(error, sizeof(error), "Automatic encoder selection "
1777 "failed for output stream #%d:%d. Default encoder for "
1778 "format %s is probably disabled. Please choose an "
1779 "encoder manually.\n", ost->file_index, ost->index,
1781 ret = AVERROR(EINVAL);
1786 ist->decoding_needed = 1;
1787 ost->encoding_needed = 1;
1790 * We want CFR output if and only if one of those is true:
1791 * 1) user specified output framerate with -r
1792 * 2) user specified -vsync cfr
1793 * 3) output format is CFR and the user didn't force vsync to
1794 * something else than CFR
1796 * in such a case, set ost->frame_rate
1798 if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1799 !ost->frame_rate.num && ist &&
1800 (video_sync_method == VSYNC_CFR ||
1801 (video_sync_method == VSYNC_AUTO &&
1802 !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
1803 if (ist->framerate.num)
1804 ost->frame_rate = ist->framerate;
1805 else if (ist->st->avg_frame_rate.num)
1806 ost->frame_rate = ist->st->avg_frame_rate;
1808 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1809 "for the output stream #%d:%d, but no information "
1810 "about the input framerate is available. Falling "
1811 "back to a default value of 25fps. Use the -r option "
1812 "if you want a different framerate.\n",
1813 ost->file_index, ost->index);
1814 ost->frame_rate = (AVRational){ 25, 1 };
1817 if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
1818 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1819 ost->frame_rate = ost->enc->supported_framerates[idx];
1824 (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
1825 enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) {
1827 fg = init_simple_filtergraph(ist, ost);
1828 if (configure_filtergraph(fg)) {
1829 av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
1834 switch (enc_ctx->codec_type) {
1835 case AVMEDIA_TYPE_AUDIO:
1836 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1837 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1838 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1839 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1840 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
1842 case AVMEDIA_TYPE_VIDEO:
1843 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
1845 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1846 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1847 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1848 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1849 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
1850 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1851 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
1853 ost->st->avg_frame_rate = ost->frame_rate;
1856 (enc_ctx->width != dec_ctx->width ||
1857 enc_ctx->height != dec_ctx->height ||
1858 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1859 enc_ctx->bits_per_raw_sample = 0;
1862 if (ost->forced_keyframes)
1863 parse_forced_key_frames(ost->forced_keyframes, ost,
1866 case AVMEDIA_TYPE_SUBTITLE:
1867 enc_ctx->time_base = (AVRational){1, 1000};
1874 if ((enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
1875 char logfilename[1024];
1878 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1879 ost->logfile_prefix ? ost->logfile_prefix :
1880 DEFAULT_PASS_LOGFILENAME_PREFIX,
1882 if (!strcmp(ost->enc->name, "libx264")) {
1883 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1885 if (enc_ctx->flags & CODEC_FLAG_PASS1) {
1886 f = fopen(logfilename, "wb");
1888 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1889 logfilename, strerror(errno));
1895 size_t logbuffer_size;
1896 if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
1897 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1901 enc_ctx->stats_in = logbuffer;
1908 /* open each encoder */
1909 for (i = 0; i < nb_output_streams; i++) {
1910 ost = output_streams[i];
1911 if (ost->encoding_needed) {
1912 AVCodec *codec = ost->enc;
1913 AVCodecContext *dec = NULL;
1915 if ((ist = get_input_stream(ost)))
1916 dec = ist->st->codec;
1917 if (dec && dec->subtitle_header) {
1918 ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
1919 if (!ost->st->codec->subtitle_header) {
1920 ret = AVERROR(ENOMEM);
1923 memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
1924 ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
1926 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
1927 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
1928 if ((ret = avcodec_open2(ost->st->codec, codec, &ost->encoder_opts)) < 0) {
1929 if (ret == AVERROR_EXPERIMENTAL)
1930 abort_codec_experimental(codec, 1);
1931 snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
1932 ost->file_index, ost->index);
1935 assert_avoptions(ost->encoder_opts);
1936 if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
1937 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
1938 "It takes bits/s as argument, not kbits/s\n");
1940 av_opt_set_dict(ost->st->codec, &ost->encoder_opts);
1944 /* init input streams */
1945 for (i = 0; i < nb_input_streams; i++)
1946 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
1949 /* discard unused programs */
1950 for (i = 0; i < nb_input_files; i++) {
1951 InputFile *ifile = input_files[i];
1952 for (j = 0; j < ifile->ctx->nb_programs; j++) {
1953 AVProgram *p = ifile->ctx->programs[j];
1954 int discard = AVDISCARD_ALL;
1956 for (k = 0; k < p->nb_stream_indexes; k++)
1957 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
1958 discard = AVDISCARD_DEFAULT;
1961 p->discard = discard;
1965 /* open files and write file headers */
1966 for (i = 0; i < nb_output_files; i++) {
1967 oc = output_files[i]->ctx;
1968 oc->interrupt_callback = int_cb;
1969 if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
1971 av_strerror(ret, errbuf, sizeof(errbuf));
1972 snprintf(error, sizeof(error),
1973 "Could not write header for output file #%d "
1974 "(incorrect codec parameters ?): %s",
1976 ret = AVERROR(EINVAL);
1979 assert_avoptions(output_files[i]->opts);
1980 if (strcmp(oc->oformat->name, "rtp")) {
1986 /* dump the file output parameters - cannot be done before in case
1988 for (i = 0; i < nb_output_files; i++) {
1989 av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1);
1992 /* dump the stream mapping */
1993 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
1994 for (i = 0; i < nb_input_streams; i++) {
1995 ist = input_streams[i];
1997 for (j = 0; j < ist->nb_filters; j++) {
1998 if (ist->filters[j]->graph->graph_desc) {
1999 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2000 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2001 ist->filters[j]->name);
2002 if (nb_filtergraphs > 1)
2003 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2004 av_log(NULL, AV_LOG_INFO, "\n");
2009 for (i = 0; i < nb_output_streams; i++) {
2010 ost = output_streams[i];
2012 if (ost->attachment_filename) {
2013 /* an attached file */
2014 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2015 ost->attachment_filename, ost->file_index, ost->index);
2019 if (ost->filter && ost->filter->graph->graph_desc) {
2020 /* output from a complex graph */
2021 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2022 if (nb_filtergraphs > 1)
2023 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2025 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2026 ost->index, ost->enc ? ost->enc->name : "?");
2030 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2031 input_streams[ost->source_index]->file_index,
2032 input_streams[ost->source_index]->st->index,
2035 if (ost->sync_ist != input_streams[ost->source_index])
2036 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2037 ost->sync_ist->file_index,
2038 ost->sync_ist->st->index);
2039 if (ost->stream_copy)
2040 av_log(NULL, AV_LOG_INFO, " (copy)");
2042 av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ?
2043 input_streams[ost->source_index]->dec->name : "?",
2044 ost->enc ? ost->enc->name : "?");
2045 av_log(NULL, AV_LOG_INFO, "\n");
2049 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2060 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2061 static int need_output(void)
2065 for (i = 0; i < nb_output_streams; i++) {
2066 OutputStream *ost = output_streams[i];
2067 OutputFile *of = output_files[ost->file_index];
2068 AVFormatContext *os = output_files[ost->file_index]->ctx;
2070 if (ost->finished ||
2071 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2073 if (ost->frame_number >= ost->max_frames) {
2075 for (j = 0; j < of->ctx->nb_streams; j++)
2076 output_streams[of->ost_index + j]->finished = 1;
2086 static InputFile *select_input_file(void)
2088 InputFile *ifile = NULL;
2089 int64_t ipts_min = INT64_MAX;
2092 for (i = 0; i < nb_input_streams; i++) {
2093 InputStream *ist = input_streams[i];
2094 int64_t ipts = ist->last_dts;
2096 if (ist->discard || input_files[ist->file_index]->eagain)
2098 if (!input_files[ist->file_index]->eof_reached) {
2099 if (ipts < ipts_min) {
2101 ifile = input_files[ist->file_index];
2110 static void *input_thread(void *arg)
2115 while (!transcoding_finished && ret >= 0) {
2117 ret = av_read_frame(f->ctx, &pkt);
2119 if (ret == AVERROR(EAGAIN)) {
2126 pthread_mutex_lock(&f->fifo_lock);
2127 while (!av_fifo_space(f->fifo))
2128 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2130 av_dup_packet(&pkt);
2131 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2133 pthread_mutex_unlock(&f->fifo_lock);
2140 static void free_input_threads(void)
2144 if (nb_input_files == 1)
2147 transcoding_finished = 1;
2149 for (i = 0; i < nb_input_files; i++) {
2150 InputFile *f = input_files[i];
2153 if (!f->fifo || f->joined)
2156 pthread_mutex_lock(&f->fifo_lock);
2157 while (av_fifo_size(f->fifo)) {
2158 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2159 av_free_packet(&pkt);
2161 pthread_cond_signal(&f->fifo_cond);
2162 pthread_mutex_unlock(&f->fifo_lock);
2164 pthread_join(f->thread, NULL);
2167 while (av_fifo_size(f->fifo)) {
2168 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2169 av_free_packet(&pkt);
2171 av_fifo_free(f->fifo);
2175 static int init_input_threads(void)
2179 if (nb_input_files == 1)
2182 for (i = 0; i < nb_input_files; i++) {
2183 InputFile *f = input_files[i];
2185 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2186 return AVERROR(ENOMEM);
2188 pthread_mutex_init(&f->fifo_lock, NULL);
2189 pthread_cond_init (&f->fifo_cond, NULL);
2191 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2192 return AVERROR(ret);
2197 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2201 pthread_mutex_lock(&f->fifo_lock);
2203 if (av_fifo_size(f->fifo)) {
2204 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2205 pthread_cond_signal(&f->fifo_cond);
2210 ret = AVERROR(EAGAIN);
2213 pthread_mutex_unlock(&f->fifo_lock);
2219 static int get_input_packet(InputFile *f, AVPacket *pkt)
2223 for (i = 0; i < f->nb_streams; i++) {
2224 InputStream *ist = input_streams[f->ist_index + i];
2225 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2226 int64_t now = av_gettime() - ist->start;
2228 return AVERROR(EAGAIN);
2233 if (nb_input_files > 1)
2234 return get_input_packet_mt(f, pkt);
2236 return av_read_frame(f->ctx, pkt);
2239 static int got_eagain(void)
2242 for (i = 0; i < nb_input_files; i++)
2243 if (input_files[i]->eagain)
2248 static void reset_eagain(void)
2251 for (i = 0; i < nb_input_files; i++)
2252 input_files[i]->eagain = 0;
2256 * Read one packet from an input file and send it for
2257 * - decoding -> lavfi (audio/video)
2258 * - decoding -> encoding -> muxing (subtitles)
2259 * - muxing (streamcopy)
2262 * - 0 -- one packet was read and processed
2263 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2264 * this function should be called again
2265 * - AVERROR_EOF -- this function should not be called again
2267 static int process_input(void)
2270 AVFormatContext *is;
2275 /* select the stream that we must read now */
2276 ifile = select_input_file();
2277 /* if none, if is finished */
2282 return AVERROR(EAGAIN);
2284 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2289 ret = get_input_packet(ifile, &pkt);
2291 if (ret == AVERROR(EAGAIN)) {
2296 if (ret != AVERROR_EOF) {
2297 print_error(is->filename, ret);
2301 ifile->eof_reached = 1;
2303 for (i = 0; i < ifile->nb_streams; i++) {
2304 ist = input_streams[ifile->ist_index + i];
2305 if (ist->decoding_needed)
2306 output_packet(ist, NULL);
2308 /* mark all outputs that don't go through lavfi as finished */
2309 for (j = 0; j < nb_output_streams; j++) {
2310 OutputStream *ost = output_streams[j];
2312 if (ost->source_index == ifile->ist_index + i &&
2313 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2318 return AVERROR(EAGAIN);
2324 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2325 is->streams[pkt.stream_index]);
2327 /* the following test is needed in case new streams appear
2328 dynamically in stream : we ignore them */
2329 if (pkt.stream_index >= ifile->nb_streams)
2330 goto discard_packet;
2332 ist = input_streams[ifile->ist_index + pkt.stream_index];
2334 ist->data_size += pkt.size;
2338 goto discard_packet;
2340 /* add the stream-global side data to the first packet */
2341 if (ist->nb_packets == 1)
2342 for (i = 0; i < ist->st->nb_side_data; i++) {
2343 AVPacketSideData *src_sd = &ist->st->side_data[i];
2346 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2349 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2353 memcpy(dst_data, src_sd->data, src_sd->size);
2356 if (pkt.dts != AV_NOPTS_VALUE)
2357 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2358 if (pkt.pts != AV_NOPTS_VALUE)
2359 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2361 if (pkt.pts != AV_NOPTS_VALUE)
2362 pkt.pts *= ist->ts_scale;
2363 if (pkt.dts != AV_NOPTS_VALUE)
2364 pkt.dts *= ist->ts_scale;
2366 if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2367 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2368 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2369 int64_t delta = pkt_dts - ist->next_dts;
2371 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2372 ifile->ts_offset -= delta;
2373 av_log(NULL, AV_LOG_DEBUG,
2374 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2375 delta, ifile->ts_offset);
2376 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2377 if (pkt.pts != AV_NOPTS_VALUE)
2378 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2382 ret = output_packet(ist, &pkt);
2384 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
2385 ist->file_index, ist->st->index);
2391 av_free_packet(&pkt);
2397 * The following code is the main loop of the file converter
2399 static int transcode(void)
2401 int ret, i, need_input = 1;
2402 AVFormatContext *os;
2405 int64_t timer_start;
2407 ret = transcode_init();
2411 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2414 timer_start = av_gettime();
2417 if ((ret = init_input_threads()) < 0)
2421 while (!received_sigterm) {
2422 /* check if there's any stream where output is still needed */
2423 if (!need_output()) {
2424 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2428 /* read and process one input packet if needed */
2430 ret = process_input();
2431 if (ret == AVERROR_EOF)
2435 ret = poll_filters();
2437 if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
2440 av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
2444 /* dump report by using the output first video and audio streams */
2445 print_report(0, timer_start);
2448 free_input_threads();
2451 /* at the end of stream, we must flush the decoder buffers */
2452 for (i = 0; i < nb_input_streams; i++) {
2453 ist = input_streams[i];
2454 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2455 output_packet(ist, NULL);
2463 /* write the trailer if needed and close file */
2464 for (i = 0; i < nb_output_files; i++) {
2465 os = output_files[i]->ctx;
2466 av_write_trailer(os);
2469 /* dump report by using the first video and audio streams */
2470 print_report(1, timer_start);
2472 /* close each encoder */
2473 for (i = 0; i < nb_output_streams; i++) {
2474 ost = output_streams[i];
2475 if (ost->encoding_needed) {
2476 av_freep(&ost->st->codec->stats_in);
2477 avcodec_close(ost->st->codec);
2481 /* close each decoder */
2482 for (i = 0; i < nb_input_streams; i++) {
2483 ist = input_streams[i];
2484 if (ist->decoding_needed) {
2485 avcodec_close(ist->st->codec);
2486 if (ist->hwaccel_uninit)
2487 ist->hwaccel_uninit(ist->st->codec);
2496 free_input_threads();
2499 if (output_streams) {
2500 for (i = 0; i < nb_output_streams; i++) {
2501 ost = output_streams[i];
2503 if (ost->stream_copy)
2504 av_freep(&ost->st->codec->extradata);
2506 fclose(ost->logfile);
2507 ost->logfile = NULL;
2509 av_freep(&ost->st->codec->subtitle_header);
2510 av_free(ost->forced_kf_pts);
2511 av_dict_free(&ost->encoder_opts);
2512 av_dict_free(&ost->resample_opts);
2519 static int64_t getutime(void)
2522 struct rusage rusage;
2524 getrusage(RUSAGE_SELF, &rusage);
2525 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2526 #elif HAVE_GETPROCESSTIMES
2528 FILETIME c, e, k, u;
2529 proc = GetCurrentProcess();
2530 GetProcessTimes(proc, &c, &e, &k, &u);
2531 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2533 return av_gettime();
2537 static int64_t getmaxrss(void)
2539 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2540 struct rusage rusage;
2541 getrusage(RUSAGE_SELF, &rusage);
2542 return (int64_t)rusage.ru_maxrss * 1024;
2543 #elif HAVE_GETPROCESSMEMORYINFO
2545 PROCESS_MEMORY_COUNTERS memcounters;
2546 proc = GetCurrentProcess();
2547 memcounters.cb = sizeof(memcounters);
2548 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2549 return memcounters.PeakPagefileUsage;
2555 int main(int argc, char **argv)
2560 register_exit(avconv_cleanup);
2562 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2563 parse_loglevel(argc, argv, options);
2565 avcodec_register_all();
2567 avdevice_register_all();
2569 avfilter_register_all();
2571 avformat_network_init();
2575 /* parse options and open all input/output files */
2576 ret = avconv_parse_options(argc, argv);
2580 if (nb_output_files <= 0 && nb_input_files == 0) {
2582 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2586 /* file converter / grab */
2587 if (nb_output_files <= 0) {
2588 fprintf(stderr, "At least one output file must be specified\n");
2593 if (transcode() < 0)
2595 ti = getutime() - ti;
2597 int maxrss = getmaxrss() / 1024;
2598 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);