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/hwcontext.h"
42 #include "libavutil/internal.h"
43 #include "libavutil/intreadwrite.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/mathematics.h"
46 #include "libavutil/pixdesc.h"
47 #include "libavutil/avstring.h"
48 #include "libavutil/libm.h"
49 #include "libavutil/imgutils.h"
50 #include "libavutil/time.h"
51 #include "libavformat/os_support.h"
53 # include "libavfilter/avfilter.h"
54 # include "libavfilter/buffersrc.h"
55 # include "libavfilter/buffersink.h"
57 #if HAVE_SYS_RESOURCE_H
59 #include <sys/types.h>
60 #include <sys/resource.h>
61 #elif HAVE_GETPROCESSTIMES
64 #if HAVE_GETPROCESSMEMORYINFO
70 #include <sys/select.h>
82 #include "libavutil/avassert.h"
84 const char program_name[] = "avconv";
85 const int program_birth_year = 2000;
87 static FILE *vstats_file;
89 static int nb_frames_drop = 0;
91 static int want_sdp = 1;
94 /* signal to input threads that they should exit; set by the main thread */
95 static int transcoding_finished;
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 while (av_fifo_size(fg->inputs[j]->frame_queue)) {
153 av_fifo_generic_read(fg->inputs[j]->frame_queue, &frame,
154 sizeof(frame), NULL);
155 av_frame_free(&frame);
157 av_fifo_free(fg->inputs[j]->frame_queue);
158 av_buffer_unref(&fg->inputs[j]->hw_frames_ctx);
159 av_freep(&fg->inputs[j]->name);
160 av_freep(&fg->inputs[j]);
162 av_freep(&fg->inputs);
163 for (j = 0; j < fg->nb_outputs; j++) {
164 av_freep(&fg->outputs[j]->name);
165 av_freep(&fg->outputs[j]->formats);
166 av_freep(&fg->outputs[j]->channel_layouts);
167 av_freep(&fg->outputs[j]->sample_rates);
168 av_freep(&fg->outputs[j]);
170 av_freep(&fg->outputs);
171 av_freep(&fg->graph_desc);
173 av_freep(&filtergraphs[i]);
175 av_freep(&filtergraphs);
178 for (i = 0; i < nb_output_files; i++) {
179 OutputFile *of = output_files[i];
180 AVFormatContext *s = of->ctx;
181 if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
183 avformat_free_context(s);
184 av_dict_free(&of->opts);
186 av_freep(&output_files[i]);
188 for (i = 0; i < nb_output_streams; i++) {
189 OutputStream *ost = output_streams[i];
191 for (j = 0; j < ost->nb_bitstream_filters; j++)
192 av_bsf_free(&ost->bsf_ctx[j]);
193 av_freep(&ost->bsf_ctx);
195 av_frame_free(&ost->filtered_frame);
197 av_parser_close(ost->parser);
198 avcodec_free_context(&ost->parser_avctx);
200 av_freep(&ost->forced_keyframes);
201 av_freep(&ost->avfilter);
202 av_freep(&ost->logfile_prefix);
204 avcodec_free_context(&ost->enc_ctx);
206 if (ost->muxing_queue) {
207 while (av_fifo_size(ost->muxing_queue)) {
209 av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
210 av_packet_unref(&pkt);
212 av_fifo_free(ost->muxing_queue);
214 av_freep(&output_streams[i]);
216 for (i = 0; i < nb_input_files; i++) {
217 avformat_close_input(&input_files[i]->ctx);
218 av_freep(&input_files[i]);
220 for (i = 0; i < nb_input_streams; i++) {
221 InputStream *ist = input_streams[i];
223 av_frame_free(&ist->decoded_frame);
224 av_frame_free(&ist->filter_frame);
225 av_dict_free(&ist->decoder_opts);
226 av_freep(&ist->filters);
227 av_freep(&ist->hwaccel_device);
229 avcodec_free_context(&ist->dec_ctx);
231 av_freep(&input_streams[i]);
236 av_free(vstats_filename);
238 av_freep(&input_streams);
239 av_freep(&input_files);
240 av_freep(&output_streams);
241 av_freep(&output_files);
245 avformat_network_deinit();
247 if (received_sigterm) {
248 av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
249 (int) received_sigterm);
254 void assert_avoptions(AVDictionary *m)
256 AVDictionaryEntry *t;
257 if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
258 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
263 static void abort_codec_experimental(AVCodec *c, int encoder)
265 const char *codec_string = encoder ? "encoder" : "decoder";
267 av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
268 "results.\nAdd '-strict experimental' if you want to use it.\n",
269 codec_string, c->name);
270 codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
271 if (!(codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL))
272 av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
273 codec_string, codec->name);
277 static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)
279 AVFormatContext *s = of->ctx;
280 AVStream *st = ost->st;
283 if (!of->header_written) {
285 /* the muxer is not initialized yet, buffer the packet */
286 if (!av_fifo_space(ost->muxing_queue)) {
287 int new_size = FFMIN(2 * av_fifo_size(ost->muxing_queue),
288 ost->max_muxing_queue_size);
289 if (new_size <= av_fifo_size(ost->muxing_queue)) {
290 av_log(NULL, AV_LOG_ERROR,
291 "Too many packets buffered for output stream %d:%d.\n",
292 ost->file_index, ost->st->index);
295 ret = av_fifo_realloc2(ost->muxing_queue, new_size);
299 av_packet_move_ref(&tmp_pkt, pkt);
300 av_fifo_generic_write(ost->muxing_queue, &tmp_pkt, sizeof(tmp_pkt), NULL);
305 * Audio encoders may split the packets -- #frames in != #packets out.
306 * But there is no reordering, so we can limit the number of output packets
307 * by simply dropping them here.
308 * Counting encoded video frames needs to be done separately because of
309 * reordering, see do_video_out()
311 if (!(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && ost->encoding_needed)) {
312 if (ost->frame_number >= ost->max_frames) {
313 av_packet_unref(pkt);
318 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
319 uint8_t *sd = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_FACTOR,
321 ost->quality = sd ? *(int *)sd : -1;
323 if (ost->frame_rate.num) {
324 pkt->duration = av_rescale_q(1, av_inv_q(ost->frame_rate),
329 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
330 ost->last_mux_dts != AV_NOPTS_VALUE &&
331 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
332 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
333 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
334 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
336 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
339 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
340 "in incorrect timestamps in the output file.\n",
341 ost->last_mux_dts + 1);
342 pkt->dts = ost->last_mux_dts + 1;
343 if (pkt->pts != AV_NOPTS_VALUE)
344 pkt->pts = FFMAX(pkt->pts, pkt->dts);
346 ost->last_mux_dts = pkt->dts;
348 ost->data_size += pkt->size;
349 ost->packets_written++;
351 pkt->stream_index = ost->index;
352 av_packet_rescale_ts(pkt, ost->mux_timebase, ost->st->time_base);
354 ret = av_interleaved_write_frame(s, pkt);
356 print_error("av_interleaved_write_frame()", ret);
361 static void output_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)
365 /* apply the output bitstream filters, if any */
366 if (ost->nb_bitstream_filters) {
369 ret = av_bsf_send_packet(ost->bsf_ctx[0], pkt);
375 /* get a packet from the previous filter up the chain */
376 ret = av_bsf_receive_packet(ost->bsf_ctx[idx - 1], pkt);
377 if (ret == AVERROR(EAGAIN)) {
384 /* send it to the next filter down the chain or to the muxer */
385 if (idx < ost->nb_bitstream_filters) {
386 ret = av_bsf_send_packet(ost->bsf_ctx[idx], pkt);
391 write_packet(of, pkt, ost);
394 write_packet(of, pkt, ost);
397 if (ret < 0 && ret != AVERROR_EOF) {
398 av_log(NULL, AV_LOG_FATAL, "Error applying bitstream filters to an output "
399 "packet for stream #%d:%d.\n", ost->file_index, ost->index);
404 static int check_recording_time(OutputStream *ost)
406 OutputFile *of = output_files[ost->file_index];
408 if (of->recording_time != INT64_MAX &&
409 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
410 AV_TIME_BASE_Q) >= 0) {
417 static void do_audio_out(OutputFile *of, OutputStream *ost,
420 AVCodecContext *enc = ost->enc_ctx;
424 av_init_packet(&pkt);
428 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
429 frame->pts = ost->sync_opts;
430 ost->sync_opts = frame->pts + frame->nb_samples;
432 ost->samples_encoded += frame->nb_samples;
433 ost->frames_encoded++;
435 ret = avcodec_send_frame(enc, frame);
440 ret = avcodec_receive_packet(enc, &pkt);
441 if (ret == AVERROR(EAGAIN))
446 output_packet(of, &pkt, ost);
451 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
455 static void do_subtitle_out(OutputFile *of,
461 static uint8_t *subtitle_out = NULL;
462 int subtitle_out_max_size = 1024 * 1024;
463 int subtitle_out_size, nb, i;
467 if (pts == AV_NOPTS_VALUE) {
468 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
477 subtitle_out = av_malloc(subtitle_out_max_size);
480 /* Note: DVB subtitle need one packet to draw them and one other
481 packet to clear them */
482 /* XXX: signal it in the codec context ? */
483 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
488 for (i = 0; i < nb; i++) {
489 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
490 if (!check_recording_time(ost))
493 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
494 // start_display_time is required to be 0
495 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
496 sub->end_display_time -= sub->start_display_time;
497 sub->start_display_time = 0;
499 ost->frames_encoded++;
501 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
502 subtitle_out_max_size, sub);
503 if (subtitle_out_size < 0) {
504 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
508 av_init_packet(&pkt);
509 pkt.data = subtitle_out;
510 pkt.size = subtitle_out_size;
511 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->mux_timebase);
512 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
513 /* XXX: the pts correction is handled here. Maybe handling
514 it in the codec would be better */
516 pkt.pts += 90 * sub->start_display_time;
518 pkt.pts += 90 * sub->end_display_time;
520 output_packet(of, &pkt, ost);
524 static void do_video_out(OutputFile *of,
529 int ret, format_video_sync;
531 AVCodecContext *enc = ost->enc_ctx;
535 format_video_sync = video_sync_method;
536 if (format_video_sync == VSYNC_AUTO)
537 format_video_sync = (of->ctx->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
538 (of->ctx->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
539 if (format_video_sync != VSYNC_PASSTHROUGH &&
541 in_picture->pts != AV_NOPTS_VALUE &&
542 in_picture->pts < ost->sync_opts) {
544 av_log(NULL, AV_LOG_WARNING,
545 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
546 ost->frame_number, ost->st->index, in_picture->pts);
550 if (in_picture->pts == AV_NOPTS_VALUE)
551 in_picture->pts = ost->sync_opts;
552 ost->sync_opts = in_picture->pts;
555 if (!ost->frame_number)
556 ost->first_pts = in_picture->pts;
558 av_init_packet(&pkt);
562 if (ost->frame_number >= ost->max_frames)
565 if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
566 ost->top_field_first >= 0)
567 in_picture->top_field_first = !!ost->top_field_first;
569 in_picture->quality = enc->global_quality;
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_send_frame(enc, in_picture);
584 * For video, there may be reordering, so we can't throw away frames on
585 * encoder flush, we need to limit them here, before they go into encoder.
590 ret = avcodec_receive_packet(enc, &pkt);
591 if (ret == AVERROR(EAGAIN))
596 output_packet(of, &pkt, ost);
597 *frame_size = pkt.size;
599 /* if two pass, output log */
600 if (ost->logfile && enc->stats_out) {
601 fprintf(ost->logfile, "%s", enc->stats_out);
609 av_assert0(ret != AVERROR(EAGAIN) && ret != AVERROR_EOF);
610 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
614 #if FF_API_CODED_FRAME && FF_API_ERROR_FRAME
615 static double psnr(double d)
617 return -10.0 * log(d) / log(10.0);
621 static void do_video_stats(OutputStream *ost, int frame_size)
625 double ti1, bitrate, avg_bitrate;
627 /* this is executed just the first time do_video_stats is called */
629 vstats_file = fopen(vstats_filename, "w");
637 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
638 frame_number = ost->frame_number;
639 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
640 ost->quality / (float)FF_QP2LAMBDA);
642 #if FF_API_CODED_FRAME && FF_API_ERROR_FRAME
643 FF_DISABLE_DEPRECATION_WARNINGS
644 if (enc->flags & AV_CODEC_FLAG_PSNR)
645 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
646 FF_ENABLE_DEPRECATION_WARNINGS
649 fprintf(vstats_file,"f_size= %6d ", frame_size);
650 /* compute pts value */
651 ti1 = ost->sync_opts * av_q2d(enc->time_base);
655 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
656 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
657 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
658 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
659 #if FF_API_CODED_FRAME
660 FF_DISABLE_DEPRECATION_WARNINGS
661 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
662 FF_ENABLE_DEPRECATION_WARNINGS
667 static int init_output_stream(OutputStream *ost, char *error, int error_len);
670 * Read one frame for lavfi output for ost and encode it.
672 static int poll_filter(OutputStream *ost)
674 OutputFile *of = output_files[ost->file_index];
675 AVFrame *filtered_frame = NULL;
678 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
679 return AVERROR(ENOMEM);
681 filtered_frame = ost->filtered_frame;
683 if (!ost->initialized) {
685 ret = init_output_stream(ost, error, sizeof(error));
687 av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
688 ost->file_index, ost->index, error);
693 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
694 !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
695 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
696 ost->enc_ctx->frame_size);
698 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
703 if (filtered_frame->pts != AV_NOPTS_VALUE) {
704 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
705 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
706 ost->filter->filter->inputs[0]->time_base,
707 ost->enc_ctx->time_base) -
708 av_rescale_q(start_time,
710 ost->enc_ctx->time_base);
713 switch (ost->filter->filter->inputs[0]->type) {
714 case AVMEDIA_TYPE_VIDEO:
715 if (!ost->frame_aspect_ratio)
716 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
718 do_video_out(of, ost, filtered_frame, &frame_size);
719 if (vstats_filename && frame_size)
720 do_video_stats(ost, frame_size);
722 case AVMEDIA_TYPE_AUDIO:
723 do_audio_out(of, ost, filtered_frame);
726 // TODO support subtitle filters
730 av_frame_unref(filtered_frame);
735 static void finish_output_stream(OutputStream *ost)
737 OutputFile *of = output_files[ost->file_index];
743 for (i = 0; i < of->ctx->nb_streams; i++)
744 output_streams[of->ost_index + i]->finished = 1;
749 * Read as many frames from possible from lavfi and encode them.
751 * Always read from the active stream with the lowest timestamp. If no frames
752 * are available for it then return EAGAIN and wait for more input. This way we
753 * can use lavfi sources that generate unlimited amount of frames without memory
756 static int poll_filters(void)
760 while (ret >= 0 && !received_sigterm) {
761 OutputStream *ost = NULL;
762 int64_t min_pts = INT64_MAX;
764 /* choose output stream with the lowest timestamp */
765 for (i = 0; i < nb_output_streams; i++) {
766 int64_t pts = output_streams[i]->sync_opts;
768 if (output_streams[i]->filter && !output_streams[i]->filter->graph->graph &&
769 !output_streams[i]->filter->graph->nb_inputs) {
770 ret = configure_filtergraph(output_streams[i]->filter->graph);
772 av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
777 if (!output_streams[i]->filter || output_streams[i]->finished ||
778 !output_streams[i]->filter->graph->graph)
781 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
785 ost = output_streams[i];
792 ret = poll_filter(ost);
794 if (ret == AVERROR_EOF) {
795 finish_output_stream(ost);
797 } else if (ret == AVERROR(EAGAIN))
804 static void print_final_stats(int64_t total_size)
806 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
807 uint64_t data_size = 0;
808 float percent = -1.0;
811 for (i = 0; i < nb_output_streams; i++) {
812 OutputStream *ost = output_streams[i];
813 switch (ost->enc_ctx->codec_type) {
814 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
815 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
816 default: other_size += ost->data_size; break;
818 extra_size += ost->enc_ctx->extradata_size;
819 data_size += ost->data_size;
822 if (data_size && total_size >= data_size)
823 percent = 100.0 * (total_size - data_size) / data_size;
825 av_log(NULL, AV_LOG_INFO, "\n");
826 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
830 extra_size / 1024.0);
832 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
834 av_log(NULL, AV_LOG_INFO, "unknown");
835 av_log(NULL, AV_LOG_INFO, "\n");
837 /* print verbose per-stream stats */
838 for (i = 0; i < nb_input_files; i++) {
839 InputFile *f = input_files[i];
840 uint64_t total_packets = 0, total_size = 0;
842 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
843 i, f->ctx->filename);
845 for (j = 0; j < f->nb_streams; j++) {
846 InputStream *ist = input_streams[f->ist_index + j];
847 enum AVMediaType type = ist->dec_ctx->codec_type;
849 total_size += ist->data_size;
850 total_packets += ist->nb_packets;
852 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
853 i, j, media_type_string(type));
854 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
855 ist->nb_packets, ist->data_size);
857 if (ist->decoding_needed) {
858 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
859 ist->frames_decoded);
860 if (type == AVMEDIA_TYPE_AUDIO)
861 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
862 av_log(NULL, AV_LOG_VERBOSE, "; ");
865 av_log(NULL, AV_LOG_VERBOSE, "\n");
868 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
869 total_packets, total_size);
872 for (i = 0; i < nb_output_files; i++) {
873 OutputFile *of = output_files[i];
874 uint64_t total_packets = 0, total_size = 0;
876 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
877 i, of->ctx->filename);
879 for (j = 0; j < of->ctx->nb_streams; j++) {
880 OutputStream *ost = output_streams[of->ost_index + j];
881 enum AVMediaType type = ost->enc_ctx->codec_type;
883 total_size += ost->data_size;
884 total_packets += ost->packets_written;
886 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
887 i, j, media_type_string(type));
888 if (ost->encoding_needed) {
889 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
890 ost->frames_encoded);
891 if (type == AVMEDIA_TYPE_AUDIO)
892 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
893 av_log(NULL, AV_LOG_VERBOSE, "; ");
896 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
897 ost->packets_written, ost->data_size);
899 av_log(NULL, AV_LOG_VERBOSE, "\n");
902 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
903 total_packets, total_size);
907 static void print_report(int is_last_report, int64_t timer_start)
914 int frame_number, vid, i;
915 double bitrate, ti1, pts;
916 static int64_t last_time = -1;
917 static int qp_histogram[52];
919 if (!print_stats && !is_last_report)
922 if (!is_last_report) {
924 /* display the report every 0.5 seconds */
925 cur_time = av_gettime_relative();
926 if (last_time == -1) {
927 last_time = cur_time;
930 if ((cur_time - last_time) < 500000)
932 last_time = cur_time;
936 oc = output_files[0]->ctx;
938 total_size = avio_size(oc->pb);
939 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
940 total_size = avio_tell(oc->pb);
941 if (total_size < 0) {
943 av_strerror(total_size, errbuf, sizeof(errbuf));
944 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
945 "avio_tell() failed: %s\n", errbuf);
952 for (i = 0; i < nb_output_streams; i++) {
954 ost = output_streams[i];
956 if (!ost->stream_copy)
957 q = ost->quality / (float) FF_QP2LAMBDA;
959 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
960 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
962 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
963 float t = (av_gettime_relative() - timer_start) / 1000000.0;
965 frame_number = ost->frame_number;
966 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
967 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
969 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
973 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
975 for (j = 0; j < 32; j++)
976 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
979 #if FF_API_CODED_FRAME && FF_API_ERROR_FRAME
980 FF_DISABLE_DEPRECATION_WARNINGS
981 if (enc->flags & AV_CODEC_FLAG_PSNR) {
983 double error, error_sum = 0;
984 double scale, scale_sum = 0;
985 char type[3] = { 'Y','U','V' };
986 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
987 for (j = 0; j < 3; j++) {
988 if (is_last_report) {
989 error = enc->error[j];
990 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
992 error = enc->coded_frame->error[j];
993 scale = enc->width * enc->height * 255.0 * 255.0;
999 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
1001 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1003 FF_ENABLE_DEPRECATION_WARNINGS
1007 /* compute min output value */
1008 pts = (double)ost->last_mux_dts * av_q2d(ost->mux_timebase);
1009 if ((pts < ti1) && (pts > 0))
1015 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1017 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1018 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1019 (double)total_size / 1024, ti1, bitrate);
1022 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
1025 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1030 print_final_stats(total_size);
1034 static void flush_encoders(void)
1038 for (i = 0; i < nb_output_streams; i++) {
1039 OutputStream *ost = output_streams[i];
1040 AVCodecContext *enc = ost->enc_ctx;
1041 OutputFile *of = output_files[ost->file_index];
1042 int stop_encoding = 0;
1044 if (!ost->encoding_needed)
1047 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1050 if (enc->codec_type != AVMEDIA_TYPE_VIDEO && enc->codec_type != AVMEDIA_TYPE_AUDIO)
1053 avcodec_send_frame(enc, NULL);
1056 const char *desc = NULL;
1058 switch (enc->codec_type) {
1059 case AVMEDIA_TYPE_AUDIO:
1062 case AVMEDIA_TYPE_VIDEO:
1071 av_init_packet(&pkt);
1075 ret = avcodec_receive_packet(enc, &pkt);
1076 if (ret < 0 && ret != AVERROR_EOF) {
1077 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1080 if (ost->logfile && enc->stats_out) {
1081 fprintf(ost->logfile, "%s", enc->stats_out);
1083 if (ret == AVERROR_EOF) {
1087 output_packet(of, &pkt, ost);
1097 * Check whether a packet from ist should be written into ost at this time
1099 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1101 OutputFile *of = output_files[ost->file_index];
1102 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1104 if (ost->source_index != ist_index)
1107 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1113 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1115 OutputFile *of = output_files[ost->file_index];
1116 InputFile *f = input_files [ist->file_index];
1117 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1118 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->mux_timebase);
1121 av_init_packet(&opkt);
1123 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1124 !ost->copy_initial_nonkeyframes)
1127 if (of->recording_time != INT64_MAX &&
1128 ist->last_dts >= of->recording_time + start_time) {
1133 if (f->recording_time != INT64_MAX) {
1134 start_time = f->ctx->start_time;
1135 if (f->start_time != AV_NOPTS_VALUE)
1136 start_time += f->start_time;
1137 if (ist->last_dts >= f->recording_time + start_time) {
1143 /* force the input stream PTS */
1144 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1147 if (pkt->pts != AV_NOPTS_VALUE)
1148 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->mux_timebase) - ost_tb_start_time;
1150 opkt.pts = AV_NOPTS_VALUE;
1152 if (pkt->dts == AV_NOPTS_VALUE)
1153 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->mux_timebase);
1155 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->mux_timebase);
1156 opkt.dts -= ost_tb_start_time;
1158 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->mux_timebase);
1159 opkt.flags = pkt->flags;
1161 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1162 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1163 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1164 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1165 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1167 if (av_parser_change(ost->parser, ost->parser_avctx,
1168 &opkt.data, &opkt.size,
1169 pkt->data, pkt->size,
1170 pkt->flags & AV_PKT_FLAG_KEY)) {
1171 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1176 opkt.data = pkt->data;
1177 opkt.size = pkt->size;
1180 output_packet(of, &opkt, ost);
1183 static int ifilter_send_frame(InputFilter *ifilter, AVFrame *frame)
1185 FilterGraph *fg = ifilter->graph;
1186 int need_reinit, ret, i;
1188 /* determine if the parameters for this input changed */
1189 need_reinit = ifilter->format != frame->format;
1190 if (!!ifilter->hw_frames_ctx != !!frame->hw_frames_ctx ||
1191 (ifilter->hw_frames_ctx && ifilter->hw_frames_ctx->data != frame->hw_frames_ctx->data))
1194 switch (ifilter->ist->st->codecpar->codec_type) {
1195 case AVMEDIA_TYPE_AUDIO:
1196 need_reinit |= ifilter->sample_rate != frame->sample_rate ||
1197 ifilter->channel_layout != frame->channel_layout;
1199 case AVMEDIA_TYPE_VIDEO:
1200 need_reinit |= ifilter->width != frame->width ||
1201 ifilter->height != frame->height;
1206 ret = ifilter_parameters_from_frame(ifilter, frame);
1211 /* (re)init the graph if possible, otherwise buffer the frame and return */
1212 if (need_reinit || !fg->graph) {
1213 for (i = 0; i < fg->nb_inputs; i++) {
1214 if (fg->inputs[i]->format < 0) {
1215 AVFrame *tmp = av_frame_clone(frame);
1217 return AVERROR(ENOMEM);
1218 av_frame_unref(frame);
1220 if (!av_fifo_space(ifilter->frame_queue)) {
1221 ret = av_fifo_realloc2(ifilter->frame_queue, 2 * av_fifo_size(ifilter->frame_queue));
1225 av_fifo_generic_write(ifilter->frame_queue, &tmp, sizeof(tmp), NULL);
1230 ret = poll_filters();
1231 if (ret < 0 && ret != AVERROR_EOF) {
1233 av_strerror(ret, errbuf, sizeof(errbuf));
1235 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1239 ret = configure_filtergraph(fg);
1241 av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
1246 ret = av_buffersrc_add_frame(ifilter->filter, frame);
1248 av_log(NULL, AV_LOG_ERROR, "Error while filtering\n");
1255 static int ifilter_send_eof(InputFilter *ifilter)
1261 if (ifilter->filter) {
1262 ret = av_buffersrc_add_frame(ifilter->filter, NULL);
1266 // the filtergraph was never configured
1267 FilterGraph *fg = ifilter->graph;
1268 for (i = 0; i < fg->nb_inputs; i++)
1269 if (!fg->inputs[i]->eof)
1271 if (i == fg->nb_inputs) {
1272 // All the input streams have finished without the filtergraph
1273 // ever being configured.
1274 // Mark the output streams as finished.
1275 for (j = 0; j < fg->nb_outputs; j++)
1276 finish_output_stream(fg->outputs[j]->ost);
1283 // This does not quite work like avcodec_decode_audio4/avcodec_decode_video2.
1284 // There is the following difference: if you got a frame, you must call
1285 // it again with pkt=NULL. pkt==NULL is treated differently from pkt.size==0
1286 // (pkt==NULL means get more output, pkt.size==0 is a flush/drain packet)
1287 static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
1294 ret = avcodec_send_packet(avctx, pkt);
1295 // In particular, we don't expect AVERROR(EAGAIN), because we read all
1296 // decoded frames with avcodec_receive_frame() until done.
1298 return ret == AVERROR_EOF ? 0 : ret;
1301 ret = avcodec_receive_frame(avctx, frame);
1302 if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
1310 int guess_input_channel_layout(InputStream *ist)
1312 AVCodecContext *dec = ist->dec_ctx;
1314 if (!dec->channel_layout) {
1315 char layout_name[256];
1317 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1318 if (!dec->channel_layout)
1320 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1321 dec->channels, dec->channel_layout);
1322 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1323 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1328 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output,
1331 AVFrame *decoded_frame, *f;
1332 AVCodecContext *avctx = ist->dec_ctx;
1333 int i, ret, err = 0;
1335 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1336 return AVERROR(ENOMEM);
1337 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1338 return AVERROR(ENOMEM);
1339 decoded_frame = ist->decoded_frame;
1341 ret = decode(avctx, decoded_frame, got_output, pkt);
1344 if (!*got_output || ret < 0)
1347 ist->samples_decoded += decoded_frame->nb_samples;
1348 ist->frames_decoded++;
1350 /* if the decoder provides a pts, use it instead of the last packet pts.
1351 the decoder could be delaying output by a packet or more. */
1352 if (decoded_frame->pts != AV_NOPTS_VALUE)
1353 ist->next_dts = decoded_frame->pts;
1354 else if (pkt && pkt->pts != AV_NOPTS_VALUE) {
1355 decoded_frame->pts = pkt->pts;
1358 if (decoded_frame->pts != AV_NOPTS_VALUE)
1359 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1361 (AVRational){1, avctx->sample_rate});
1362 ist->nb_samples = decoded_frame->nb_samples;
1363 for (i = 0; i < ist->nb_filters; i++) {
1364 if (i < ist->nb_filters - 1) {
1365 f = ist->filter_frame;
1366 err = av_frame_ref(f, decoded_frame);
1372 err = ifilter_send_frame(ist->filters[i], f);
1377 av_frame_unref(ist->filter_frame);
1378 av_frame_unref(decoded_frame);
1379 return err < 0 ? err : ret;
1382 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output,
1385 AVFrame *decoded_frame, *f;
1386 int i, ret = 0, err = 0;
1388 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1389 return AVERROR(ENOMEM);
1390 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1391 return AVERROR(ENOMEM);
1392 decoded_frame = ist->decoded_frame;
1394 ret = decode(ist->dec_ctx, decoded_frame, got_output, pkt);
1397 if (!*got_output || ret < 0)
1400 ist->frames_decoded++;
1402 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1403 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1407 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1409 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pts,
1410 decoded_frame->pkt_dts);
1411 if (ist->framerate.num)
1412 decoded_frame->pts = ist->cfr_next_pts++;
1414 if (ist->st->sample_aspect_ratio.num)
1415 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1417 for (i = 0; i < ist->nb_filters; i++) {
1418 if (i < ist->nb_filters - 1) {
1419 f = ist->filter_frame;
1420 err = av_frame_ref(f, decoded_frame);
1426 err = ifilter_send_frame(ist->filters[i], f);
1432 av_frame_unref(ist->filter_frame);
1433 av_frame_unref(decoded_frame);
1434 return err < 0 ? err : ret;
1437 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output,
1440 AVSubtitle subtitle;
1441 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1442 &subtitle, got_output, pkt);
1450 ist->frames_decoded++;
1452 for (i = 0; i < nb_output_streams; i++) {
1453 OutputStream *ost = output_streams[i];
1455 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1458 do_subtitle_out(output_files[ost->file_index], ost, ist, &subtitle, pkt->pts);
1461 avsubtitle_free(&subtitle);
1465 static int send_filter_eof(InputStream *ist)
1468 for (i = 0; i < ist->nb_filters; i++) {
1469 ret = ifilter_send_eof(ist->filters[i]);
1476 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1477 static void process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
1483 if (ist->next_dts == AV_NOPTS_VALUE)
1484 ist->next_dts = ist->last_dts;
1488 av_init_packet(&avpkt);
1495 if (pkt && pkt->dts != AV_NOPTS_VALUE)
1496 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1498 // while we have more to decode or while the decoder did output something on EOF
1499 while (ist->decoding_needed && (!pkt || avpkt.size > 0)) {
1502 int decode_failed = 0;
1505 ist->last_dts = ist->next_dts;
1507 switch (ist->dec_ctx->codec_type) {
1508 case AVMEDIA_TYPE_AUDIO:
1509 ret = decode_audio (ist, repeating ? NULL : &avpkt, &got_output,
1512 case AVMEDIA_TYPE_VIDEO:
1513 ret = decode_video (ist, repeating ? NULL : &avpkt, &got_output,
1515 if (repeating && !got_output)
1517 else if (pkt && pkt->duration)
1518 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1519 else if (ist->st->avg_frame_rate.num)
1520 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1522 else if (ist->dec_ctx->framerate.num != 0) {
1523 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1524 ist->dec_ctx->ticks_per_frame;
1525 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
1528 case AVMEDIA_TYPE_SUBTITLE:
1531 ret = transcode_subtitles(ist, &avpkt, &got_output, &decode_failed);
1538 if (decode_failed) {
1539 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1540 ist->file_index, ist->st->index);
1542 av_log(NULL, AV_LOG_FATAL, "Error while processing the decoded "
1543 "data for stream #%d:%d\n", ist->file_index, ist->st->index);
1545 if (!decode_failed || exit_on_error)
1556 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1557 /* except when looping we need to flush but not to send an EOF */
1558 if (!pkt && ist->decoding_needed && !no_eof) {
1559 int ret = send_filter_eof(ist);
1561 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1566 /* handle stream copy */
1567 if (!ist->decoding_needed) {
1568 ist->last_dts = ist->next_dts;
1569 switch (ist->dec_ctx->codec_type) {
1570 case AVMEDIA_TYPE_AUDIO:
1571 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1572 ist->dec_ctx->sample_rate;
1574 case AVMEDIA_TYPE_VIDEO:
1575 if (ist->dec_ctx->framerate.num != 0) {
1576 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1577 ist->next_dts += ((int64_t)AV_TIME_BASE *
1578 ist->dec_ctx->framerate.den * ticks) /
1579 ist->dec_ctx->framerate.num;
1584 for (i = 0; pkt && i < nb_output_streams; i++) {
1585 OutputStream *ost = output_streams[i];
1587 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1590 do_streamcopy(ist, ost, pkt);
1596 static void print_sdp(void)
1600 AVFormatContext **avc;
1602 for (i = 0; i < nb_output_files; i++) {
1603 if (!output_files[i]->header_written)
1607 avc = av_malloc(sizeof(*avc) * nb_output_files);
1610 for (i = 0; i < nb_output_files; i++)
1611 avc[i] = output_files[i]->ctx;
1613 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1614 printf("SDP:\n%s\n", sdp);
1619 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1622 for (i = 0; hwaccels[i].name; i++)
1623 if (hwaccels[i].pix_fmt == pix_fmt)
1624 return &hwaccels[i];
1628 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1630 InputStream *ist = s->opaque;
1631 const enum AVPixelFormat *p;
1634 for (p = pix_fmts; *p != -1; p++) {
1635 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1636 const HWAccel *hwaccel;
1638 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1641 hwaccel = get_hwaccel(*p);
1643 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1644 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1647 ret = hwaccel->init(s);
1649 if (ist->hwaccel_id == hwaccel->id) {
1650 av_log(NULL, AV_LOG_FATAL,
1651 "%s hwaccel requested for input stream #%d:%d, "
1652 "but cannot be initialized.\n", hwaccel->name,
1653 ist->file_index, ist->st->index);
1654 return AV_PIX_FMT_NONE;
1659 if (ist->hw_frames_ctx) {
1660 s->hw_frames_ctx = av_buffer_ref(ist->hw_frames_ctx);
1661 if (!s->hw_frames_ctx)
1662 return AV_PIX_FMT_NONE;
1665 ist->active_hwaccel_id = hwaccel->id;
1666 ist->hwaccel_pix_fmt = *p;
1673 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1675 InputStream *ist = s->opaque;
1677 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1678 return ist->hwaccel_get_buffer(s, frame, flags);
1680 return avcodec_default_get_buffer2(s, frame, flags);
1683 static int init_input_stream(int ist_index, char *error, int error_len)
1686 InputStream *ist = input_streams[ist_index];
1688 if (ist->decoding_needed) {
1689 AVCodec *codec = ist->dec;
1691 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1692 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1693 return AVERROR(EINVAL);
1696 ist->dec_ctx->opaque = ist;
1697 ist->dec_ctx->get_format = get_format;
1698 ist->dec_ctx->get_buffer2 = get_buffer;
1699 ist->dec_ctx->thread_safe_callbacks = 1;
1701 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1703 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1704 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1705 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1707 if (ret == AVERROR_EXPERIMENTAL)
1708 abort_codec_experimental(codec, 0);
1710 av_strerror(ret, errbuf, sizeof(errbuf));
1712 snprintf(error, error_len,
1713 "Error while opening decoder for input stream "
1715 ist->file_index, ist->st->index, errbuf);
1718 assert_avoptions(ist->decoder_opts);
1721 ist->last_dts = ist->st->avg_frame_rate.num ? - ist->dec_ctx->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
1722 ist->next_dts = AV_NOPTS_VALUE;
1723 init_pts_correction(&ist->pts_ctx);
1728 static InputStream *get_input_stream(OutputStream *ost)
1730 if (ost->source_index >= 0)
1731 return input_streams[ost->source_index];
1734 FilterGraph *fg = ost->filter->graph;
1737 for (i = 0; i < fg->nb_inputs; i++)
1738 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1739 return fg->inputs[i]->ist;
1745 /* open the muxer when all the streams are initialized */
1746 static int check_init_output_file(OutputFile *of, int file_index)
1750 for (i = 0; i < of->ctx->nb_streams; i++) {
1751 OutputStream *ost = output_streams[of->ost_index + i];
1752 if (!ost->initialized)
1756 of->ctx->interrupt_callback = int_cb;
1758 ret = avformat_write_header(of->ctx, &of->opts);
1762 av_strerror(ret, errbuf, sizeof(errbuf));
1764 av_log(NULL, AV_LOG_ERROR,
1765 "Could not write header for output file #%d "
1766 "(incorrect codec parameters ?): %s",
1767 file_index, errbuf);
1770 assert_avoptions(of->opts);
1771 of->header_written = 1;
1773 av_dump_format(of->ctx, file_index, of->ctx->filename, 1);
1778 /* flush the muxing queues */
1779 for (i = 0; i < of->ctx->nb_streams; i++) {
1780 OutputStream *ost = output_streams[of->ost_index + i];
1782 while (av_fifo_size(ost->muxing_queue)) {
1784 av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
1785 write_packet(of, &pkt, ost);
1792 static int init_output_bsfs(OutputStream *ost)
1797 if (!ost->nb_bitstream_filters)
1800 for (i = 0; i < ost->nb_bitstream_filters; i++) {
1801 ctx = ost->bsf_ctx[i];
1803 ret = avcodec_parameters_copy(ctx->par_in,
1804 i ? ost->bsf_ctx[i - 1]->par_out : ost->st->codecpar);
1808 ctx->time_base_in = i ? ost->bsf_ctx[i - 1]->time_base_out : ost->st->time_base;
1810 ret = av_bsf_init(ctx);
1812 av_log(NULL, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
1818 ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
1822 ost->st->time_base = ctx->time_base_out;
1827 static int init_output_stream_streamcopy(OutputStream *ost)
1829 OutputFile *of = output_files[ost->file_index];
1830 InputStream *ist = get_input_stream(ost);
1831 AVCodecParameters *par_dst = ost->st->codecpar;
1832 AVCodecParameters *par_src = ist->st->codecpar;
1834 uint32_t codec_tag = par_dst->codec_tag;
1838 if (!of->ctx->oformat->codec_tag ||
1839 av_codec_get_id (of->ctx->oformat->codec_tag, par_src->codec_tag) == par_src->codec_id ||
1840 av_codec_get_tag(of->ctx->oformat->codec_tag, par_src->codec_id) <= 0)
1841 codec_tag = par_src->codec_tag;
1844 ret = avcodec_parameters_copy(par_dst, par_src);
1848 par_dst->codec_tag = codec_tag;
1850 ost->st->disposition = ist->st->disposition;
1852 ost->st->time_base = ist->st->time_base;
1854 if (ist->st->nb_side_data) {
1855 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1856 sizeof(*ist->st->side_data));
1857 if (!ost->st->side_data)
1858 return AVERROR(ENOMEM);
1860 for (i = 0; i < ist->st->nb_side_data; i++) {
1861 const AVPacketSideData *sd_src = &ist->st->side_data[i];
1862 AVPacketSideData *sd_dst = &ost->st->side_data[i];
1864 sd_dst->data = av_malloc(sd_src->size);
1866 return AVERROR(ENOMEM);
1867 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1868 sd_dst->size = sd_src->size;
1869 sd_dst->type = sd_src->type;
1870 ost->st->nb_side_data++;
1874 ost->parser = av_parser_init(par_dst->codec_id);
1875 ost->parser_avctx = avcodec_alloc_context3(NULL);
1876 if (!ost->parser_avctx)
1877 return AVERROR(ENOMEM);
1879 if (par_dst->codec_type == AVMEDIA_TYPE_VIDEO) {
1880 if (ost->frame_aspect_ratio)
1881 sar = av_d2q(ost->frame_aspect_ratio * par_dst->height / par_dst->width, 255);
1882 else if (ist->st->sample_aspect_ratio.num)
1883 sar = ist->st->sample_aspect_ratio;
1885 sar = par_src->sample_aspect_ratio;
1886 ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
1892 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1894 AVDictionaryEntry *e;
1896 uint8_t *encoder_string;
1897 int encoder_string_len;
1898 int format_flags = 0;
1900 e = av_dict_get(of->opts, "fflags", NULL, 0);
1902 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1905 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1908 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1909 encoder_string = av_mallocz(encoder_string_len);
1910 if (!encoder_string)
1913 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1914 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1915 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1916 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1917 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1920 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1921 AVCodecContext *avctx)
1927 for (p = kf; *p; p++)
1930 ost->forced_kf_count = n;
1931 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1932 if (!ost->forced_kf_pts) {
1933 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1938 for (i = 0; i < n; i++) {
1939 char *next = strchr(p, ',');
1944 t = parse_time_or_die("force_key_frames", p, 1);
1945 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1951 static int init_output_stream_encode(OutputStream *ost)
1953 InputStream *ist = get_input_stream(ost);
1954 AVCodecContext *enc_ctx = ost->enc_ctx;
1955 AVCodecContext *dec_ctx = NULL;
1957 set_encoder_id(output_files[ost->file_index], ost);
1960 ost->st->disposition = ist->st->disposition;
1962 dec_ctx = ist->dec_ctx;
1964 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1965 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1968 switch (enc_ctx->codec_type) {
1969 case AVMEDIA_TYPE_AUDIO:
1970 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1971 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1972 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1973 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1974 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
1976 case AVMEDIA_TYPE_VIDEO:
1977 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
1979 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1980 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1981 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1982 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1983 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
1984 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1985 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
1987 enc_ctx->framerate = ost->frame_rate;
1989 ost->st->avg_frame_rate = ost->frame_rate;
1992 (enc_ctx->width != dec_ctx->width ||
1993 enc_ctx->height != dec_ctx->height ||
1994 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1995 enc_ctx->bits_per_raw_sample = 0;
1998 if (ost->forced_keyframes)
1999 parse_forced_key_frames(ost->forced_keyframes, ost,
2002 case AVMEDIA_TYPE_SUBTITLE:
2003 enc_ctx->time_base = (AVRational){1, 1000};
2013 static int init_output_stream(OutputStream *ost, char *error, int error_len)
2017 if (ost->encoding_needed) {
2018 AVCodec *codec = ost->enc;
2019 AVCodecContext *dec = NULL;
2022 ret = init_output_stream_encode(ost);
2026 if ((ist = get_input_stream(ost)))
2028 if (dec && dec->subtitle_header) {
2029 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
2030 if (!ost->enc_ctx->subtitle_header)
2031 return AVERROR(ENOMEM);
2032 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2033 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
2035 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
2036 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
2038 if (ost->filter && ost->filter->filter->inputs[0]->hw_frames_ctx &&
2039 ((AVHWFramesContext*)ost->filter->filter->inputs[0]->hw_frames_ctx->data)->format ==
2040 ost->filter->filter->inputs[0]->format) {
2041 ost->enc_ctx->hw_frames_ctx = av_buffer_ref(ost->filter->filter->inputs[0]->hw_frames_ctx);
2042 if (!ost->enc_ctx->hw_frames_ctx)
2043 return AVERROR(ENOMEM);
2046 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
2047 if (ret == AVERROR_EXPERIMENTAL)
2048 abort_codec_experimental(codec, 1);
2049 snprintf(error, error_len,
2050 "Error while opening encoder for output stream #%d:%d - "
2051 "maybe incorrect parameters such as bit_rate, rate, width or height",
2052 ost->file_index, ost->index);
2055 assert_avoptions(ost->encoder_opts);
2056 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
2057 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2058 "It takes bits/s as argument, not kbits/s\n");
2060 ret = avcodec_parameters_from_context(ost->st->codecpar, ost->enc_ctx);
2062 av_log(NULL, AV_LOG_FATAL,
2063 "Error initializing the output stream codec context.\n");
2067 if (ost->enc_ctx->nb_coded_side_data) {
2070 ost->st->side_data = av_realloc_array(NULL, ost->enc_ctx->nb_coded_side_data,
2071 sizeof(*ost->st->side_data));
2072 if (!ost->st->side_data)
2073 return AVERROR(ENOMEM);
2075 for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
2076 const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
2077 AVPacketSideData *sd_dst = &ost->st->side_data[i];
2079 sd_dst->data = av_malloc(sd_src->size);
2081 return AVERROR(ENOMEM);
2082 memcpy(sd_dst->data, sd_src->data, sd_src->size);
2083 sd_dst->size = sd_src->size;
2084 sd_dst->type = sd_src->type;
2085 ost->st->nb_side_data++;
2089 ost->st->time_base = ost->enc_ctx->time_base;
2090 } else if (ost->stream_copy) {
2091 ret = init_output_stream_streamcopy(ost);
2096 * FIXME: will the codec context used by the parser during streamcopy
2097 * This should go away with the new parser API.
2099 ret = avcodec_parameters_to_context(ost->parser_avctx, ost->st->codecpar);
2104 /* initialize bitstream filters for the output stream
2105 * needs to be done here, because the codec id for streamcopy is not
2106 * known until now */
2107 ret = init_output_bsfs(ost);
2111 ost->mux_timebase = ost->st->time_base;
2113 ost->initialized = 1;
2115 ret = check_init_output_file(output_files[ost->file_index], ost->file_index);
2122 static int transcode_init(void)
2124 int ret = 0, i, j, k;
2129 /* init framerate emulation */
2130 for (i = 0; i < nb_input_files; i++) {
2131 InputFile *ifile = input_files[i];
2132 if (ifile->rate_emu)
2133 for (j = 0; j < ifile->nb_streams; j++)
2134 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
2137 /* init input streams */
2138 for (i = 0; i < nb_input_streams; i++)
2139 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2142 /* open each encoder */
2143 for (i = 0; i < nb_output_streams; i++) {
2144 // skip streams fed from filtergraphs until we have a frame for them
2145 if (output_streams[i]->filter)
2148 ret = init_output_stream(output_streams[i], error, sizeof(error));
2154 /* discard unused programs */
2155 for (i = 0; i < nb_input_files; i++) {
2156 InputFile *ifile = input_files[i];
2157 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2158 AVProgram *p = ifile->ctx->programs[j];
2159 int discard = AVDISCARD_ALL;
2161 for (k = 0; k < p->nb_stream_indexes; k++)
2162 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2163 discard = AVDISCARD_DEFAULT;
2166 p->discard = discard;
2171 /* dump the stream mapping */
2172 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2173 for (i = 0; i < nb_input_streams; i++) {
2174 ist = input_streams[i];
2176 for (j = 0; j < ist->nb_filters; j++) {
2177 if (!filtergraph_is_simple(ist->filters[j]->graph)) {
2178 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2179 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2180 ist->filters[j]->name);
2181 if (nb_filtergraphs > 1)
2182 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2183 av_log(NULL, AV_LOG_INFO, "\n");
2188 for (i = 0; i < nb_output_streams; i++) {
2189 ost = output_streams[i];
2191 if (ost->attachment_filename) {
2192 /* an attached file */
2193 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2194 ost->attachment_filename, ost->file_index, ost->index);
2198 if (ost->filter && !filtergraph_is_simple(ost->filter->graph)) {
2199 /* output from a complex graph */
2200 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2201 if (nb_filtergraphs > 1)
2202 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2204 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2205 ost->index, ost->enc ? ost->enc->name : "?");
2209 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2210 input_streams[ost->source_index]->file_index,
2211 input_streams[ost->source_index]->st->index,
2214 if (ost->sync_ist != input_streams[ost->source_index])
2215 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2216 ost->sync_ist->file_index,
2217 ost->sync_ist->st->index);
2218 if (ost->stream_copy)
2219 av_log(NULL, AV_LOG_INFO, " (copy)");
2221 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2222 const AVCodec *out_codec = ost->enc;
2223 const char *decoder_name = "?";
2224 const char *in_codec_name = "?";
2225 const char *encoder_name = "?";
2226 const char *out_codec_name = "?";
2227 const AVCodecDescriptor *desc;
2230 decoder_name = in_codec->name;
2231 desc = avcodec_descriptor_get(in_codec->id);
2233 in_codec_name = desc->name;
2234 if (!strcmp(decoder_name, in_codec_name))
2235 decoder_name = "native";
2239 encoder_name = out_codec->name;
2240 desc = avcodec_descriptor_get(out_codec->id);
2242 out_codec_name = desc->name;
2243 if (!strcmp(encoder_name, out_codec_name))
2244 encoder_name = "native";
2247 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2248 in_codec_name, decoder_name,
2249 out_codec_name, encoder_name);
2251 av_log(NULL, AV_LOG_INFO, "\n");
2255 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2262 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2263 static int need_output(void)
2267 for (i = 0; i < nb_output_streams; i++) {
2268 OutputStream *ost = output_streams[i];
2269 OutputFile *of = output_files[ost->file_index];
2270 AVFormatContext *os = output_files[ost->file_index]->ctx;
2272 if (ost->finished ||
2273 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2275 if (ost->frame_number >= ost->max_frames) {
2277 for (j = 0; j < of->ctx->nb_streams; j++)
2278 output_streams[of->ost_index + j]->finished = 1;
2288 static InputFile *select_input_file(void)
2290 InputFile *ifile = NULL;
2291 int64_t ipts_min = INT64_MAX;
2294 for (i = 0; i < nb_input_streams; i++) {
2295 InputStream *ist = input_streams[i];
2296 int64_t ipts = ist->last_dts;
2298 if (ist->discard || input_files[ist->file_index]->eagain)
2300 if (!input_files[ist->file_index]->eof_reached) {
2301 if (ipts < ipts_min) {
2303 ifile = input_files[ist->file_index];
2312 static void *input_thread(void *arg)
2317 while (!transcoding_finished && ret >= 0) {
2319 ret = av_read_frame(f->ctx, &pkt);
2321 if (ret == AVERROR(EAGAIN)) {
2328 pthread_mutex_lock(&f->fifo_lock);
2329 while (!av_fifo_space(f->fifo))
2330 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2332 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2334 pthread_mutex_unlock(&f->fifo_lock);
2341 static void free_input_threads(void)
2345 if (nb_input_files == 1)
2348 transcoding_finished = 1;
2350 for (i = 0; i < nb_input_files; i++) {
2351 InputFile *f = input_files[i];
2354 if (!f->fifo || f->joined)
2357 pthread_mutex_lock(&f->fifo_lock);
2358 while (av_fifo_size(f->fifo)) {
2359 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2360 av_packet_unref(&pkt);
2362 pthread_cond_signal(&f->fifo_cond);
2363 pthread_mutex_unlock(&f->fifo_lock);
2365 pthread_join(f->thread, NULL);
2368 while (av_fifo_size(f->fifo)) {
2369 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2370 av_packet_unref(&pkt);
2372 av_fifo_free(f->fifo);
2376 static int init_input_threads(void)
2380 if (nb_input_files == 1)
2383 for (i = 0; i < nb_input_files; i++) {
2384 InputFile *f = input_files[i];
2386 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2387 return AVERROR(ENOMEM);
2389 pthread_mutex_init(&f->fifo_lock, NULL);
2390 pthread_cond_init (&f->fifo_cond, NULL);
2392 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2393 return AVERROR(ret);
2398 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2402 pthread_mutex_lock(&f->fifo_lock);
2404 if (av_fifo_size(f->fifo)) {
2405 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2406 pthread_cond_signal(&f->fifo_cond);
2411 ret = AVERROR(EAGAIN);
2414 pthread_mutex_unlock(&f->fifo_lock);
2420 static int get_input_packet(InputFile *f, AVPacket *pkt)
2424 for (i = 0; i < f->nb_streams; i++) {
2425 InputStream *ist = input_streams[f->ist_index + i];
2426 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2427 int64_t now = av_gettime_relative() - ist->start;
2429 return AVERROR(EAGAIN);
2434 if (nb_input_files > 1)
2435 return get_input_packet_mt(f, pkt);
2437 return av_read_frame(f->ctx, pkt);
2440 static int got_eagain(void)
2443 for (i = 0; i < nb_input_files; i++)
2444 if (input_files[i]->eagain)
2449 static void reset_eagain(void)
2452 for (i = 0; i < nb_input_files; i++)
2453 input_files[i]->eagain = 0;
2456 // set duration to max(tmp, duration) in a proper time base and return duration's time_base
2457 static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
2458 AVRational time_base)
2464 return tmp_time_base;
2467 ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
2470 return tmp_time_base;
2476 static int seek_to_start(InputFile *ifile, AVFormatContext *is)
2479 AVCodecContext *avctx;
2480 int i, ret, has_audio = 0;
2481 int64_t duration = 0;
2483 ret = av_seek_frame(is, -1, is->start_time, 0);
2487 for (i = 0; i < ifile->nb_streams; i++) {
2488 ist = input_streams[ifile->ist_index + i];
2489 avctx = ist->dec_ctx;
2492 if (ist->decoding_needed) {
2493 process_input_packet(ist, NULL, 1);
2494 avcodec_flush_buffers(avctx);
2497 /* duration is the length of the last frame in a stream
2498 * when audio stream is present we don't care about
2499 * last video frame length because it's not defined exactly */
2500 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
2504 for (i = 0; i < ifile->nb_streams; i++) {
2505 ist = input_streams[ifile->ist_index + i];
2506 avctx = ist->dec_ctx;
2509 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
2510 AVRational sample_rate = {1, avctx->sample_rate};
2512 duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
2516 if (ist->framerate.num) {
2517 duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
2518 } else if (ist->st->avg_frame_rate.num) {
2519 duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
2520 } else duration = 1;
2522 if (!ifile->duration)
2523 ifile->time_base = ist->st->time_base;
2524 /* the total duration of the stream, max_pts - min_pts is
2525 * the duration of the stream without the last frame */
2526 duration += ist->max_pts - ist->min_pts;
2527 ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
2531 if (ifile->loop > 0)
2538 * Read one packet from an input file and send it for
2539 * - decoding -> lavfi (audio/video)
2540 * - decoding -> encoding -> muxing (subtitles)
2541 * - muxing (streamcopy)
2544 * - 0 -- one packet was read and processed
2545 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2546 * this function should be called again
2547 * - AVERROR_EOF -- this function should not be called again
2549 static int process_input(void)
2552 AVFormatContext *is;
2558 /* select the stream that we must read now */
2559 ifile = select_input_file();
2560 /* if none, if is finished */
2565 return AVERROR(EAGAIN);
2567 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2572 ret = get_input_packet(ifile, &pkt);
2574 if (ret == AVERROR(EAGAIN)) {
2578 if (ret < 0 && ifile->loop) {
2579 if ((ret = seek_to_start(ifile, is)) < 0)
2581 ret = get_input_packet(ifile, &pkt);
2584 if (ret != AVERROR_EOF) {
2585 print_error(is->filename, ret);
2589 ifile->eof_reached = 1;
2591 for (i = 0; i < ifile->nb_streams; i++) {
2592 ist = input_streams[ifile->ist_index + i];
2593 if (ist->decoding_needed)
2594 process_input_packet(ist, NULL, 0);
2596 /* mark all outputs that don't go through lavfi as finished */
2597 for (j = 0; j < nb_output_streams; j++) {
2598 OutputStream *ost = output_streams[j];
2600 if (ost->source_index == ifile->ist_index + i &&
2601 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2602 finish_output_stream(ost);
2606 return AVERROR(EAGAIN);
2612 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2613 is->streams[pkt.stream_index]);
2615 /* the following test is needed in case new streams appear
2616 dynamically in stream : we ignore them */
2617 if (pkt.stream_index >= ifile->nb_streams)
2618 goto discard_packet;
2620 ist = input_streams[ifile->ist_index + pkt.stream_index];
2622 ist->data_size += pkt.size;
2626 goto discard_packet;
2628 /* add the stream-global side data to the first packet */
2629 if (ist->nb_packets == 1)
2630 for (i = 0; i < ist->st->nb_side_data; i++) {
2631 AVPacketSideData *src_sd = &ist->st->side_data[i];
2634 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2636 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2639 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2643 memcpy(dst_data, src_sd->data, src_sd->size);
2646 if (pkt.dts != AV_NOPTS_VALUE)
2647 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2648 if (pkt.pts != AV_NOPTS_VALUE)
2649 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2651 if (pkt.pts != AV_NOPTS_VALUE)
2652 pkt.pts *= ist->ts_scale;
2653 if (pkt.dts != AV_NOPTS_VALUE)
2654 pkt.dts *= ist->ts_scale;
2656 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2657 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2658 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2659 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2660 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2661 int64_t delta = pkt_dts - ist->next_dts;
2663 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2664 ifile->ts_offset -= delta;
2665 av_log(NULL, AV_LOG_DEBUG,
2666 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2667 delta, ifile->ts_offset);
2668 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2669 if (pkt.pts != AV_NOPTS_VALUE)
2670 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2673 duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
2674 if (pkt.pts != AV_NOPTS_VALUE) {
2675 pkt.pts += duration;
2676 ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
2677 ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
2680 if (pkt.dts != AV_NOPTS_VALUE)
2681 pkt.dts += duration;
2683 process_input_packet(ist, &pkt, 0);
2686 av_packet_unref(&pkt);
2692 * The following code is the main loop of the file converter
2694 static int transcode(void)
2696 int ret, i, need_input = 1;
2697 AVFormatContext *os;
2700 int64_t timer_start;
2702 ret = transcode_init();
2706 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2709 timer_start = av_gettime_relative();
2712 if ((ret = init_input_threads()) < 0)
2716 while (!received_sigterm) {
2717 /* check if there's any stream where output is still needed */
2718 if (!need_output()) {
2719 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2723 /* read and process one input packet if needed */
2725 ret = process_input();
2726 if (ret == AVERROR_EOF)
2730 ret = poll_filters();
2731 if (ret < 0 && ret != AVERROR_EOF) {
2733 av_strerror(ret, errbuf, sizeof(errbuf));
2735 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2739 /* dump report by using the output first video and audio streams */
2740 print_report(0, timer_start);
2743 free_input_threads();
2746 /* at the end of stream, we must flush the decoder buffers */
2747 for (i = 0; i < nb_input_streams; i++) {
2748 ist = input_streams[i];
2749 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2750 process_input_packet(ist, NULL, 0);
2758 /* write the trailer if needed and close file */
2759 for (i = 0; i < nb_output_files; i++) {
2760 os = output_files[i]->ctx;
2761 if (!output_files[i]->header_written) {
2762 av_log(NULL, AV_LOG_ERROR,
2763 "Nothing was written into output file %d (%s), because "
2764 "at least one of its streams received no packets.\n",
2768 av_write_trailer(os);
2771 /* dump report by using the first video and audio streams */
2772 print_report(1, timer_start);
2774 /* close each encoder */
2775 for (i = 0; i < nb_output_streams; i++) {
2776 ost = output_streams[i];
2777 if (ost->encoding_needed) {
2778 av_freep(&ost->enc_ctx->stats_in);
2782 /* close each decoder */
2783 for (i = 0; i < nb_input_streams; i++) {
2784 ist = input_streams[i];
2785 if (ist->decoding_needed) {
2786 avcodec_close(ist->dec_ctx);
2787 if (ist->hwaccel_uninit)
2788 ist->hwaccel_uninit(ist->dec_ctx);
2792 av_buffer_unref(&hw_device_ctx);
2799 free_input_threads();
2802 if (output_streams) {
2803 for (i = 0; i < nb_output_streams; i++) {
2804 ost = output_streams[i];
2807 fclose(ost->logfile);
2808 ost->logfile = NULL;
2810 av_free(ost->forced_kf_pts);
2811 av_dict_free(&ost->encoder_opts);
2812 av_dict_free(&ost->resample_opts);
2819 static int64_t getutime(void)
2822 struct rusage rusage;
2824 getrusage(RUSAGE_SELF, &rusage);
2825 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2826 #elif HAVE_GETPROCESSTIMES
2828 FILETIME c, e, k, u;
2829 proc = GetCurrentProcess();
2830 GetProcessTimes(proc, &c, &e, &k, &u);
2831 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2833 return av_gettime_relative();
2837 static int64_t getmaxrss(void)
2839 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2840 struct rusage rusage;
2841 getrusage(RUSAGE_SELF, &rusage);
2842 return (int64_t)rusage.ru_maxrss * 1024;
2843 #elif HAVE_GETPROCESSMEMORYINFO
2845 PROCESS_MEMORY_COUNTERS memcounters;
2846 proc = GetCurrentProcess();
2847 memcounters.cb = sizeof(memcounters);
2848 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2849 return memcounters.PeakPagefileUsage;
2855 int main(int argc, char **argv)
2860 register_exit(avconv_cleanup);
2862 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2863 parse_loglevel(argc, argv, options);
2865 avcodec_register_all();
2867 avdevice_register_all();
2869 avfilter_register_all();
2871 avformat_network_init();
2875 /* parse options and open all input/output files */
2876 ret = avconv_parse_options(argc, argv);
2880 if (nb_output_files <= 0 && nb_input_files == 0) {
2882 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2886 /* file converter / grab */
2887 if (nb_output_files <= 0) {
2888 fprintf(stderr, "At least one output file must be specified\n");
2892 for (i = 0; i < nb_output_files; i++) {
2893 if (strcmp(output_files[i]->ctx->oformat->name, "rtp"))
2898 if (transcode() < 0)
2900 ti = getutime() - ti;
2902 int maxrss = getmaxrss() / 1024;
2903 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);