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)
912 int64_t total_size = 0;
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);
953 for (i = 0; i < nb_output_streams; i++) {
955 ost = output_streams[i];
957 if (!ost->stream_copy)
958 q = ost->quality / (float) FF_QP2LAMBDA;
960 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
961 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
963 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
964 float t = (av_gettime_relative() - timer_start) / 1000000.0;
966 frame_number = ost->frame_number;
967 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
968 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
970 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
974 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
976 for (j = 0; j < 32; j++)
977 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
980 #if FF_API_CODED_FRAME && FF_API_ERROR_FRAME
981 FF_DISABLE_DEPRECATION_WARNINGS
982 if (enc->flags & AV_CODEC_FLAG_PSNR) {
984 double error, error_sum = 0;
985 double scale, scale_sum = 0;
986 char type[3] = { 'Y','U','V' };
987 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
988 for (j = 0; j < 3; j++) {
989 if (is_last_report) {
990 error = enc->error[j];
991 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
993 error = enc->coded_frame->error[j];
994 scale = enc->width * enc->height * 255.0 * 255.0;
1000 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
1002 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1004 FF_ENABLE_DEPRECATION_WARNINGS
1008 /* compute min output value */
1009 pts = (double)ost->last_mux_dts * av_q2d(ost->mux_timebase);
1010 if ((pts < ti1) && (pts > 0))
1016 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1018 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1019 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1020 (double)total_size / 1024, ti1, bitrate);
1023 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
1026 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1031 print_final_stats(total_size);
1035 static void flush_encoders(void)
1039 for (i = 0; i < nb_output_streams; i++) {
1040 OutputStream *ost = output_streams[i];
1041 AVCodecContext *enc = ost->enc_ctx;
1042 OutputFile *of = output_files[ost->file_index];
1043 int stop_encoding = 0;
1045 if (!ost->encoding_needed)
1048 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1051 if (enc->codec_type != AVMEDIA_TYPE_VIDEO && enc->codec_type != AVMEDIA_TYPE_AUDIO)
1054 avcodec_send_frame(enc, NULL);
1057 const char *desc = NULL;
1059 switch (enc->codec_type) {
1060 case AVMEDIA_TYPE_AUDIO:
1063 case AVMEDIA_TYPE_VIDEO:
1072 av_init_packet(&pkt);
1076 ret = avcodec_receive_packet(enc, &pkt);
1077 if (ret < 0 && ret != AVERROR_EOF) {
1078 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1081 if (ost->logfile && enc->stats_out) {
1082 fprintf(ost->logfile, "%s", enc->stats_out);
1084 if (ret == AVERROR_EOF) {
1088 output_packet(of, &pkt, ost);
1098 * Check whether a packet from ist should be written into ost at this time
1100 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1102 OutputFile *of = output_files[ost->file_index];
1103 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1105 if (ost->source_index != ist_index)
1108 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1114 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1116 OutputFile *of = output_files[ost->file_index];
1117 InputFile *f = input_files [ist->file_index];
1118 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1119 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->mux_timebase);
1122 av_init_packet(&opkt);
1124 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1125 !ost->copy_initial_nonkeyframes)
1128 if (of->recording_time != INT64_MAX &&
1129 ist->last_dts >= of->recording_time + start_time) {
1134 if (f->recording_time != INT64_MAX) {
1135 start_time = f->ctx->start_time;
1136 if (f->start_time != AV_NOPTS_VALUE)
1137 start_time += f->start_time;
1138 if (ist->last_dts >= f->recording_time + start_time) {
1144 /* force the input stream PTS */
1145 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1148 if (pkt->pts != AV_NOPTS_VALUE)
1149 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->mux_timebase) - ost_tb_start_time;
1151 opkt.pts = AV_NOPTS_VALUE;
1153 if (pkt->dts == AV_NOPTS_VALUE)
1154 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->mux_timebase);
1156 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->mux_timebase);
1157 opkt.dts -= ost_tb_start_time;
1159 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->mux_timebase);
1160 opkt.flags = pkt->flags;
1162 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1163 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1164 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1165 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1166 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1168 if (av_parser_change(ost->parser, ost->parser_avctx,
1169 &opkt.data, &opkt.size,
1170 pkt->data, pkt->size,
1171 pkt->flags & AV_PKT_FLAG_KEY)) {
1172 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1177 opkt.data = pkt->data;
1178 opkt.size = pkt->size;
1181 output_packet(of, &opkt, ost);
1184 static int ifilter_send_frame(InputFilter *ifilter, AVFrame *frame)
1186 FilterGraph *fg = ifilter->graph;
1187 int need_reinit, ret, i;
1189 /* determine if the parameters for this input changed */
1190 need_reinit = ifilter->format != frame->format;
1191 if (!!ifilter->hw_frames_ctx != !!frame->hw_frames_ctx ||
1192 (ifilter->hw_frames_ctx && ifilter->hw_frames_ctx->data != frame->hw_frames_ctx->data))
1195 switch (ifilter->ist->st->codecpar->codec_type) {
1196 case AVMEDIA_TYPE_AUDIO:
1197 need_reinit |= ifilter->sample_rate != frame->sample_rate ||
1198 ifilter->channel_layout != frame->channel_layout;
1200 case AVMEDIA_TYPE_VIDEO:
1201 need_reinit |= ifilter->width != frame->width ||
1202 ifilter->height != frame->height;
1207 ret = ifilter_parameters_from_frame(ifilter, frame);
1212 /* (re)init the graph if possible, otherwise buffer the frame and return */
1213 if (need_reinit || !fg->graph) {
1214 for (i = 0; i < fg->nb_inputs; i++) {
1215 if (fg->inputs[i]->format < 0) {
1216 AVFrame *tmp = av_frame_clone(frame);
1218 return AVERROR(ENOMEM);
1219 av_frame_unref(frame);
1221 if (!av_fifo_space(ifilter->frame_queue)) {
1222 ret = av_fifo_realloc2(ifilter->frame_queue, 2 * av_fifo_size(ifilter->frame_queue));
1226 av_fifo_generic_write(ifilter->frame_queue, &tmp, sizeof(tmp), NULL);
1231 ret = poll_filters();
1232 if (ret < 0 && ret != AVERROR_EOF) {
1234 av_strerror(ret, errbuf, sizeof(errbuf));
1236 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1240 ret = configure_filtergraph(fg);
1242 av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
1247 ret = av_buffersrc_add_frame(ifilter->filter, frame);
1249 av_log(NULL, AV_LOG_ERROR, "Error while filtering\n");
1256 static int ifilter_send_eof(InputFilter *ifilter)
1262 if (ifilter->filter) {
1263 ret = av_buffersrc_add_frame(ifilter->filter, NULL);
1267 // the filtergraph was never configured
1268 FilterGraph *fg = ifilter->graph;
1269 for (i = 0; i < fg->nb_inputs; i++)
1270 if (!fg->inputs[i]->eof)
1272 if (i == fg->nb_inputs) {
1273 // All the input streams have finished without the filtergraph
1274 // ever being configured.
1275 // Mark the output streams as finished.
1276 for (j = 0; j < fg->nb_outputs; j++)
1277 finish_output_stream(fg->outputs[j]->ost);
1284 // This does not quite work like avcodec_decode_audio4/avcodec_decode_video2.
1285 // There is the following difference: if you got a frame, you must call
1286 // it again with pkt=NULL. pkt==NULL is treated differently from pkt.size==0
1287 // (pkt==NULL means get more output, pkt.size==0 is a flush/drain packet)
1288 static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
1295 ret = avcodec_send_packet(avctx, pkt);
1296 // In particular, we don't expect AVERROR(EAGAIN), because we read all
1297 // decoded frames with avcodec_receive_frame() until done.
1299 return ret == AVERROR_EOF ? 0 : ret;
1302 ret = avcodec_receive_frame(avctx, frame);
1303 if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
1311 int guess_input_channel_layout(InputStream *ist)
1313 AVCodecContext *dec = ist->dec_ctx;
1315 if (!dec->channel_layout) {
1316 char layout_name[256];
1318 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1319 if (!dec->channel_layout)
1321 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1322 dec->channels, dec->channel_layout);
1323 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1324 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1329 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output,
1332 AVFrame *decoded_frame, *f;
1333 AVCodecContext *avctx = ist->dec_ctx;
1334 int i, ret, err = 0;
1336 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1337 return AVERROR(ENOMEM);
1338 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1339 return AVERROR(ENOMEM);
1340 decoded_frame = ist->decoded_frame;
1342 ret = decode(avctx, decoded_frame, got_output, pkt);
1345 if (!*got_output || ret < 0)
1348 ist->samples_decoded += decoded_frame->nb_samples;
1349 ist->frames_decoded++;
1351 /* if the decoder provides a pts, use it instead of the last packet pts.
1352 the decoder could be delaying output by a packet or more. */
1353 if (decoded_frame->pts != AV_NOPTS_VALUE)
1354 ist->next_dts = av_rescale_q(decoded_frame->pts, ist->st->time_base, AV_TIME_BASE_Q);
1355 else if (pkt && pkt->pts != AV_NOPTS_VALUE) {
1356 decoded_frame->pts = pkt->pts;
1359 if (decoded_frame->pts != AV_NOPTS_VALUE)
1360 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1362 (AVRational){1, avctx->sample_rate});
1363 ist->nb_samples = decoded_frame->nb_samples;
1364 for (i = 0; i < ist->nb_filters; i++) {
1365 if (i < ist->nb_filters - 1) {
1366 f = ist->filter_frame;
1367 err = av_frame_ref(f, decoded_frame);
1373 err = ifilter_send_frame(ist->filters[i], f);
1378 av_frame_unref(ist->filter_frame);
1379 av_frame_unref(decoded_frame);
1380 return err < 0 ? err : ret;
1383 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output,
1386 AVFrame *decoded_frame, *f;
1387 int i, ret = 0, err = 0;
1389 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1390 return AVERROR(ENOMEM);
1391 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1392 return AVERROR(ENOMEM);
1393 decoded_frame = ist->decoded_frame;
1395 ret = decode(ist->dec_ctx, decoded_frame, got_output, pkt);
1398 if (!*got_output || ret < 0)
1401 ist->frames_decoded++;
1403 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1404 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1408 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1410 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pts,
1411 decoded_frame->pkt_dts);
1412 if (ist->framerate.num)
1413 decoded_frame->pts = ist->cfr_next_pts++;
1415 if (ist->st->sample_aspect_ratio.num)
1416 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1418 for (i = 0; i < ist->nb_filters; i++) {
1419 if (i < ist->nb_filters - 1) {
1420 f = ist->filter_frame;
1421 err = av_frame_ref(f, decoded_frame);
1427 err = ifilter_send_frame(ist->filters[i], f);
1433 av_frame_unref(ist->filter_frame);
1434 av_frame_unref(decoded_frame);
1435 return err < 0 ? err : ret;
1438 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output,
1441 AVSubtitle subtitle;
1442 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1443 &subtitle, got_output, pkt);
1451 ist->frames_decoded++;
1453 for (i = 0; i < nb_output_streams; i++) {
1454 OutputStream *ost = output_streams[i];
1456 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1459 do_subtitle_out(output_files[ost->file_index], ost, ist, &subtitle, pkt->pts);
1462 avsubtitle_free(&subtitle);
1466 static int send_filter_eof(InputStream *ist)
1469 for (i = 0; i < ist->nb_filters; i++) {
1470 ret = ifilter_send_eof(ist->filters[i]);
1477 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1478 static void process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
1484 if (ist->next_dts == AV_NOPTS_VALUE)
1485 ist->next_dts = ist->last_dts;
1489 av_init_packet(&avpkt);
1496 if (pkt && pkt->dts != AV_NOPTS_VALUE)
1497 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1499 // while we have more to decode or while the decoder did output something on EOF
1500 while (ist->decoding_needed && (!pkt || avpkt.size > 0)) {
1503 int decode_failed = 0;
1506 ist->last_dts = ist->next_dts;
1508 switch (ist->dec_ctx->codec_type) {
1509 case AVMEDIA_TYPE_AUDIO:
1510 ret = decode_audio (ist, repeating ? NULL : &avpkt, &got_output,
1513 case AVMEDIA_TYPE_VIDEO:
1514 ret = decode_video (ist, repeating ? NULL : &avpkt, &got_output,
1516 if (repeating && !got_output)
1518 else if (pkt && pkt->duration)
1519 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1520 else if (ist->st->avg_frame_rate.num)
1521 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1523 else if (ist->dec_ctx->framerate.num != 0) {
1524 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1525 ist->dec_ctx->ticks_per_frame;
1526 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
1529 case AVMEDIA_TYPE_SUBTITLE:
1532 ret = transcode_subtitles(ist, &avpkt, &got_output, &decode_failed);
1539 if (decode_failed) {
1540 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1541 ist->file_index, ist->st->index);
1543 av_log(NULL, AV_LOG_FATAL, "Error while processing the decoded "
1544 "data for stream #%d:%d\n", ist->file_index, ist->st->index);
1546 if (!decode_failed || exit_on_error)
1557 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1558 /* except when looping we need to flush but not to send an EOF */
1559 if (!pkt && ist->decoding_needed && !no_eof) {
1560 int ret = send_filter_eof(ist);
1562 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1567 /* handle stream copy */
1568 if (!ist->decoding_needed) {
1569 ist->last_dts = ist->next_dts;
1570 switch (ist->dec_ctx->codec_type) {
1571 case AVMEDIA_TYPE_AUDIO:
1572 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1573 ist->dec_ctx->sample_rate;
1575 case AVMEDIA_TYPE_VIDEO:
1576 if (ist->dec_ctx->framerate.num != 0) {
1577 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1578 ist->next_dts += ((int64_t)AV_TIME_BASE *
1579 ist->dec_ctx->framerate.den * ticks) /
1580 ist->dec_ctx->framerate.num;
1585 for (i = 0; pkt && i < nb_output_streams; i++) {
1586 OutputStream *ost = output_streams[i];
1588 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1591 do_streamcopy(ist, ost, pkt);
1597 static void print_sdp(void)
1601 AVFormatContext **avc;
1603 for (i = 0; i < nb_output_files; i++) {
1604 if (!output_files[i]->header_written)
1608 avc = av_malloc(sizeof(*avc) * nb_output_files);
1611 for (i = 0; i < nb_output_files; i++)
1612 avc[i] = output_files[i]->ctx;
1614 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1615 printf("SDP:\n%s\n", sdp);
1620 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1623 for (i = 0; hwaccels[i].name; i++)
1624 if (hwaccels[i].pix_fmt == pix_fmt)
1625 return &hwaccels[i];
1629 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1631 InputStream *ist = s->opaque;
1632 const enum AVPixelFormat *p;
1635 for (p = pix_fmts; *p != -1; p++) {
1636 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1637 const HWAccel *hwaccel;
1639 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1642 hwaccel = get_hwaccel(*p);
1644 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1645 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1648 ret = hwaccel->init(s);
1650 if (ist->hwaccel_id == hwaccel->id) {
1651 av_log(NULL, AV_LOG_FATAL,
1652 "%s hwaccel requested for input stream #%d:%d, "
1653 "but cannot be initialized.\n", hwaccel->name,
1654 ist->file_index, ist->st->index);
1655 return AV_PIX_FMT_NONE;
1660 if (ist->hw_frames_ctx) {
1661 s->hw_frames_ctx = av_buffer_ref(ist->hw_frames_ctx);
1662 if (!s->hw_frames_ctx)
1663 return AV_PIX_FMT_NONE;
1666 ist->active_hwaccel_id = hwaccel->id;
1667 ist->hwaccel_pix_fmt = *p;
1674 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1676 InputStream *ist = s->opaque;
1678 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1679 return ist->hwaccel_get_buffer(s, frame, flags);
1681 return avcodec_default_get_buffer2(s, frame, flags);
1684 static int init_input_stream(int ist_index, char *error, int error_len)
1687 InputStream *ist = input_streams[ist_index];
1689 if (ist->decoding_needed) {
1690 AVCodec *codec = ist->dec;
1692 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1693 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1694 return AVERROR(EINVAL);
1697 ist->dec_ctx->opaque = ist;
1698 ist->dec_ctx->get_format = get_format;
1699 ist->dec_ctx->get_buffer2 = get_buffer;
1700 ist->dec_ctx->thread_safe_callbacks = 1;
1702 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1704 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1705 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1706 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1708 if (ret == AVERROR_EXPERIMENTAL)
1709 abort_codec_experimental(codec, 0);
1711 av_strerror(ret, errbuf, sizeof(errbuf));
1713 snprintf(error, error_len,
1714 "Error while opening decoder for input stream "
1716 ist->file_index, ist->st->index, errbuf);
1719 assert_avoptions(ist->decoder_opts);
1722 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;
1723 ist->next_dts = AV_NOPTS_VALUE;
1724 init_pts_correction(&ist->pts_ctx);
1729 static InputStream *get_input_stream(OutputStream *ost)
1731 if (ost->source_index >= 0)
1732 return input_streams[ost->source_index];
1735 FilterGraph *fg = ost->filter->graph;
1738 for (i = 0; i < fg->nb_inputs; i++)
1739 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1740 return fg->inputs[i]->ist;
1746 /* open the muxer when all the streams are initialized */
1747 static int check_init_output_file(OutputFile *of, int file_index)
1751 for (i = 0; i < of->ctx->nb_streams; i++) {
1752 OutputStream *ost = output_streams[of->ost_index + i];
1753 if (!ost->initialized)
1757 of->ctx->interrupt_callback = int_cb;
1759 ret = avformat_write_header(of->ctx, &of->opts);
1763 av_strerror(ret, errbuf, sizeof(errbuf));
1765 av_log(NULL, AV_LOG_ERROR,
1766 "Could not write header for output file #%d "
1767 "(incorrect codec parameters ?): %s",
1768 file_index, errbuf);
1771 assert_avoptions(of->opts);
1772 of->header_written = 1;
1774 av_dump_format(of->ctx, file_index, of->ctx->filename, 1);
1779 /* flush the muxing queues */
1780 for (i = 0; i < of->ctx->nb_streams; i++) {
1781 OutputStream *ost = output_streams[of->ost_index + i];
1783 while (av_fifo_size(ost->muxing_queue)) {
1785 av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
1786 write_packet(of, &pkt, ost);
1793 static int init_output_bsfs(OutputStream *ost)
1798 if (!ost->nb_bitstream_filters)
1801 for (i = 0; i < ost->nb_bitstream_filters; i++) {
1802 ctx = ost->bsf_ctx[i];
1804 ret = avcodec_parameters_copy(ctx->par_in,
1805 i ? ost->bsf_ctx[i - 1]->par_out : ost->st->codecpar);
1809 ctx->time_base_in = i ? ost->bsf_ctx[i - 1]->time_base_out : ost->st->time_base;
1811 ret = av_bsf_init(ctx);
1813 av_log(NULL, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
1819 ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
1823 ost->st->time_base = ctx->time_base_out;
1828 static int init_output_stream_streamcopy(OutputStream *ost)
1830 OutputFile *of = output_files[ost->file_index];
1831 InputStream *ist = get_input_stream(ost);
1832 AVCodecParameters *par_dst = ost->st->codecpar;
1833 AVCodecParameters *par_src = ist->st->codecpar;
1835 uint32_t codec_tag = par_dst->codec_tag;
1839 if (!of->ctx->oformat->codec_tag ||
1840 av_codec_get_id (of->ctx->oformat->codec_tag, par_src->codec_tag) == par_src->codec_id ||
1841 av_codec_get_tag(of->ctx->oformat->codec_tag, par_src->codec_id) <= 0)
1842 codec_tag = par_src->codec_tag;
1845 ret = avcodec_parameters_copy(par_dst, par_src);
1849 par_dst->codec_tag = codec_tag;
1851 ost->st->disposition = ist->st->disposition;
1853 ost->st->time_base = ist->st->time_base;
1855 if (ost->bitrate_override)
1856 par_dst->bit_rate = ost->bitrate_override;
1858 if (ist->st->nb_side_data) {
1859 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1860 sizeof(*ist->st->side_data));
1861 if (!ost->st->side_data)
1862 return AVERROR(ENOMEM);
1864 for (i = 0; i < ist->st->nb_side_data; i++) {
1865 const AVPacketSideData *sd_src = &ist->st->side_data[i];
1866 AVPacketSideData *sd_dst = &ost->st->side_data[i];
1868 sd_dst->data = av_malloc(sd_src->size);
1870 return AVERROR(ENOMEM);
1871 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1872 sd_dst->size = sd_src->size;
1873 sd_dst->type = sd_src->type;
1874 ost->st->nb_side_data++;
1878 ost->parser = av_parser_init(par_dst->codec_id);
1879 ost->parser_avctx = avcodec_alloc_context3(NULL);
1880 if (!ost->parser_avctx)
1881 return AVERROR(ENOMEM);
1883 if (par_dst->codec_type == AVMEDIA_TYPE_VIDEO) {
1884 if (ost->frame_aspect_ratio)
1885 sar = av_d2q(ost->frame_aspect_ratio * par_dst->height / par_dst->width, 255);
1886 else if (ist->st->sample_aspect_ratio.num)
1887 sar = ist->st->sample_aspect_ratio;
1889 sar = par_src->sample_aspect_ratio;
1890 ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
1896 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1898 AVDictionaryEntry *e;
1900 uint8_t *encoder_string;
1901 int encoder_string_len;
1902 int format_flags = 0;
1904 e = av_dict_get(of->opts, "fflags", NULL, 0);
1906 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1909 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1912 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1913 encoder_string = av_mallocz(encoder_string_len);
1914 if (!encoder_string)
1917 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1918 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1919 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1920 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1921 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1924 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1925 AVCodecContext *avctx)
1931 for (p = kf; *p; p++)
1934 ost->forced_kf_count = n;
1935 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1936 if (!ost->forced_kf_pts) {
1937 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1942 for (i = 0; i < n; i++) {
1943 char *next = strchr(p, ',');
1948 t = parse_time_or_die("force_key_frames", p, 1);
1949 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1955 static int init_output_stream_encode(OutputStream *ost)
1957 InputStream *ist = get_input_stream(ost);
1958 AVCodecContext *enc_ctx = ost->enc_ctx;
1959 AVCodecContext *dec_ctx = NULL;
1961 set_encoder_id(output_files[ost->file_index], ost);
1964 ost->st->disposition = ist->st->disposition;
1966 dec_ctx = ist->dec_ctx;
1968 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1969 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1972 switch (enc_ctx->codec_type) {
1973 case AVMEDIA_TYPE_AUDIO:
1974 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1975 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1976 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1977 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1978 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
1980 case AVMEDIA_TYPE_VIDEO:
1981 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
1983 enc_ctx->width = ost->filter->filter->inputs[0]->w;
1984 enc_ctx->height = ost->filter->filter->inputs[0]->h;
1985 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
1986 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
1987 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
1988 ost->filter->filter->inputs[0]->sample_aspect_ratio;
1989 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
1991 enc_ctx->framerate = ost->frame_rate;
1993 ost->st->avg_frame_rate = ost->frame_rate;
1996 (enc_ctx->width != dec_ctx->width ||
1997 enc_ctx->height != dec_ctx->height ||
1998 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
1999 enc_ctx->bits_per_raw_sample = 0;
2002 if (ost->forced_keyframes)
2003 parse_forced_key_frames(ost->forced_keyframes, ost,
2006 case AVMEDIA_TYPE_SUBTITLE:
2007 enc_ctx->time_base = (AVRational){1, 1000};
2017 static int init_output_stream(OutputStream *ost, char *error, int error_len)
2021 if (ost->encoding_needed) {
2022 AVCodec *codec = ost->enc;
2023 AVCodecContext *dec = NULL;
2026 ret = init_output_stream_encode(ost);
2030 if ((ist = get_input_stream(ost)))
2032 if (dec && dec->subtitle_header) {
2033 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
2034 if (!ost->enc_ctx->subtitle_header)
2035 return AVERROR(ENOMEM);
2036 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2037 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
2039 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
2040 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
2042 if (ost->filter && ost->filter->filter->inputs[0]->hw_frames_ctx &&
2043 ((AVHWFramesContext*)ost->filter->filter->inputs[0]->hw_frames_ctx->data)->format ==
2044 ost->filter->filter->inputs[0]->format) {
2045 ost->enc_ctx->hw_frames_ctx = av_buffer_ref(ost->filter->filter->inputs[0]->hw_frames_ctx);
2046 if (!ost->enc_ctx->hw_frames_ctx)
2047 return AVERROR(ENOMEM);
2050 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
2051 if (ret == AVERROR_EXPERIMENTAL)
2052 abort_codec_experimental(codec, 1);
2053 snprintf(error, error_len,
2054 "Error while opening encoder for output stream #%d:%d - "
2055 "maybe incorrect parameters such as bit_rate, rate, width or height",
2056 ost->file_index, ost->index);
2059 assert_avoptions(ost->encoder_opts);
2060 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
2061 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2062 "It takes bits/s as argument, not kbits/s\n");
2064 ret = avcodec_parameters_from_context(ost->st->codecpar, ost->enc_ctx);
2066 av_log(NULL, AV_LOG_FATAL,
2067 "Error initializing the output stream codec context.\n");
2071 if (ost->enc_ctx->nb_coded_side_data) {
2074 ost->st->side_data = av_realloc_array(NULL, ost->enc_ctx->nb_coded_side_data,
2075 sizeof(*ost->st->side_data));
2076 if (!ost->st->side_data)
2077 return AVERROR(ENOMEM);
2079 for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
2080 const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
2081 AVPacketSideData *sd_dst = &ost->st->side_data[i];
2083 sd_dst->data = av_malloc(sd_src->size);
2085 return AVERROR(ENOMEM);
2086 memcpy(sd_dst->data, sd_src->data, sd_src->size);
2087 sd_dst->size = sd_src->size;
2088 sd_dst->type = sd_src->type;
2089 ost->st->nb_side_data++;
2093 ost->st->time_base = ost->enc_ctx->time_base;
2094 } else if (ost->stream_copy) {
2095 ret = init_output_stream_streamcopy(ost);
2100 * FIXME: will the codec context used by the parser during streamcopy
2101 * This should go away with the new parser API.
2103 ret = avcodec_parameters_to_context(ost->parser_avctx, ost->st->codecpar);
2108 /* initialize bitstream filters for the output stream
2109 * needs to be done here, because the codec id for streamcopy is not
2110 * known until now */
2111 ret = init_output_bsfs(ost);
2115 ost->mux_timebase = ost->st->time_base;
2117 ost->initialized = 1;
2119 ret = check_init_output_file(output_files[ost->file_index], ost->file_index);
2126 static int transcode_init(void)
2128 int ret = 0, i, j, k;
2133 /* init framerate emulation */
2134 for (i = 0; i < nb_input_files; i++) {
2135 InputFile *ifile = input_files[i];
2136 if (ifile->rate_emu)
2137 for (j = 0; j < ifile->nb_streams; j++)
2138 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
2141 /* init input streams */
2142 for (i = 0; i < nb_input_streams; i++)
2143 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2146 /* open each encoder */
2147 for (i = 0; i < nb_output_streams; i++) {
2148 // skip streams fed from filtergraphs until we have a frame for them
2149 if (output_streams[i]->filter)
2152 ret = init_output_stream(output_streams[i], error, sizeof(error));
2158 /* discard unused programs */
2159 for (i = 0; i < nb_input_files; i++) {
2160 InputFile *ifile = input_files[i];
2161 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2162 AVProgram *p = ifile->ctx->programs[j];
2163 int discard = AVDISCARD_ALL;
2165 for (k = 0; k < p->nb_stream_indexes; k++)
2166 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2167 discard = AVDISCARD_DEFAULT;
2170 p->discard = discard;
2175 /* dump the stream mapping */
2176 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2177 for (i = 0; i < nb_input_streams; i++) {
2178 ist = input_streams[i];
2180 for (j = 0; j < ist->nb_filters; j++) {
2181 if (!filtergraph_is_simple(ist->filters[j]->graph)) {
2182 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2183 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2184 ist->filters[j]->name);
2185 if (nb_filtergraphs > 1)
2186 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2187 av_log(NULL, AV_LOG_INFO, "\n");
2192 for (i = 0; i < nb_output_streams; i++) {
2193 ost = output_streams[i];
2195 if (ost->attachment_filename) {
2196 /* an attached file */
2197 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2198 ost->attachment_filename, ost->file_index, ost->index);
2202 if (ost->filter && !filtergraph_is_simple(ost->filter->graph)) {
2203 /* output from a complex graph */
2204 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2205 if (nb_filtergraphs > 1)
2206 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2208 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2209 ost->index, ost->enc ? ost->enc->name : "?");
2213 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2214 input_streams[ost->source_index]->file_index,
2215 input_streams[ost->source_index]->st->index,
2218 if (ost->sync_ist != input_streams[ost->source_index])
2219 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2220 ost->sync_ist->file_index,
2221 ost->sync_ist->st->index);
2222 if (ost->stream_copy)
2223 av_log(NULL, AV_LOG_INFO, " (copy)");
2225 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2226 const AVCodec *out_codec = ost->enc;
2227 const char *decoder_name = "?";
2228 const char *in_codec_name = "?";
2229 const char *encoder_name = "?";
2230 const char *out_codec_name = "?";
2231 const AVCodecDescriptor *desc;
2234 decoder_name = in_codec->name;
2235 desc = avcodec_descriptor_get(in_codec->id);
2237 in_codec_name = desc->name;
2238 if (!strcmp(decoder_name, in_codec_name))
2239 decoder_name = "native";
2243 encoder_name = out_codec->name;
2244 desc = avcodec_descriptor_get(out_codec->id);
2246 out_codec_name = desc->name;
2247 if (!strcmp(encoder_name, out_codec_name))
2248 encoder_name = "native";
2251 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2252 in_codec_name, decoder_name,
2253 out_codec_name, encoder_name);
2255 av_log(NULL, AV_LOG_INFO, "\n");
2259 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2266 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2267 static int need_output(void)
2271 for (i = 0; i < nb_output_streams; i++) {
2272 OutputStream *ost = output_streams[i];
2273 OutputFile *of = output_files[ost->file_index];
2274 AVFormatContext *os = output_files[ost->file_index]->ctx;
2276 if (ost->finished ||
2277 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2279 if (ost->frame_number >= ost->max_frames) {
2281 for (j = 0; j < of->ctx->nb_streams; j++)
2282 output_streams[of->ost_index + j]->finished = 1;
2292 static InputFile *select_input_file(void)
2294 InputFile *ifile = NULL;
2295 int64_t ipts_min = INT64_MAX;
2298 for (i = 0; i < nb_input_streams; i++) {
2299 InputStream *ist = input_streams[i];
2300 int64_t ipts = ist->last_dts;
2302 if (ist->discard || input_files[ist->file_index]->eagain)
2304 if (!input_files[ist->file_index]->eof_reached) {
2305 if (ipts < ipts_min) {
2307 ifile = input_files[ist->file_index];
2316 static void *input_thread(void *arg)
2321 while (!transcoding_finished && ret >= 0) {
2323 ret = av_read_frame(f->ctx, &pkt);
2325 if (ret == AVERROR(EAGAIN)) {
2332 pthread_mutex_lock(&f->fifo_lock);
2333 while (!av_fifo_space(f->fifo))
2334 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2336 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2338 pthread_mutex_unlock(&f->fifo_lock);
2345 static void free_input_threads(void)
2349 if (nb_input_files == 1)
2352 transcoding_finished = 1;
2354 for (i = 0; i < nb_input_files; i++) {
2355 InputFile *f = input_files[i];
2358 if (!f->fifo || f->joined)
2361 pthread_mutex_lock(&f->fifo_lock);
2362 while (av_fifo_size(f->fifo)) {
2363 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2364 av_packet_unref(&pkt);
2366 pthread_cond_signal(&f->fifo_cond);
2367 pthread_mutex_unlock(&f->fifo_lock);
2369 pthread_join(f->thread, NULL);
2372 while (av_fifo_size(f->fifo)) {
2373 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2374 av_packet_unref(&pkt);
2376 av_fifo_free(f->fifo);
2380 static int init_input_threads(void)
2384 if (nb_input_files == 1)
2387 for (i = 0; i < nb_input_files; i++) {
2388 InputFile *f = input_files[i];
2390 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2391 return AVERROR(ENOMEM);
2393 pthread_mutex_init(&f->fifo_lock, NULL);
2394 pthread_cond_init (&f->fifo_cond, NULL);
2396 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2397 return AVERROR(ret);
2402 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2406 pthread_mutex_lock(&f->fifo_lock);
2408 if (av_fifo_size(f->fifo)) {
2409 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2410 pthread_cond_signal(&f->fifo_cond);
2415 ret = AVERROR(EAGAIN);
2418 pthread_mutex_unlock(&f->fifo_lock);
2424 static int get_input_packet(InputFile *f, AVPacket *pkt)
2428 for (i = 0; i < f->nb_streams; i++) {
2429 InputStream *ist = input_streams[f->ist_index + i];
2430 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2431 int64_t now = av_gettime_relative() - ist->start;
2433 return AVERROR(EAGAIN);
2438 if (nb_input_files > 1)
2439 return get_input_packet_mt(f, pkt);
2441 return av_read_frame(f->ctx, pkt);
2444 static int got_eagain(void)
2447 for (i = 0; i < nb_input_files; i++)
2448 if (input_files[i]->eagain)
2453 static void reset_eagain(void)
2456 for (i = 0; i < nb_input_files; i++)
2457 input_files[i]->eagain = 0;
2460 // set duration to max(tmp, duration) in a proper time base and return duration's time_base
2461 static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
2462 AVRational time_base)
2468 return tmp_time_base;
2471 ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
2474 return tmp_time_base;
2480 static int seek_to_start(InputFile *ifile, AVFormatContext *is)
2483 AVCodecContext *avctx;
2484 int i, ret, has_audio = 0;
2485 int64_t duration = 0;
2487 ret = av_seek_frame(is, -1, is->start_time, 0);
2491 for (i = 0; i < ifile->nb_streams; i++) {
2492 ist = input_streams[ifile->ist_index + i];
2493 avctx = ist->dec_ctx;
2496 if (ist->decoding_needed) {
2497 process_input_packet(ist, NULL, 1);
2498 avcodec_flush_buffers(avctx);
2501 /* duration is the length of the last frame in a stream
2502 * when audio stream is present we don't care about
2503 * last video frame length because it's not defined exactly */
2504 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
2508 for (i = 0; i < ifile->nb_streams; i++) {
2509 ist = input_streams[ifile->ist_index + i];
2510 avctx = ist->dec_ctx;
2513 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
2514 AVRational sample_rate = {1, avctx->sample_rate};
2516 duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
2520 if (ist->framerate.num) {
2521 duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
2522 } else if (ist->st->avg_frame_rate.num) {
2523 duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
2524 } else duration = 1;
2526 if (!ifile->duration)
2527 ifile->time_base = ist->st->time_base;
2528 /* the total duration of the stream, max_pts - min_pts is
2529 * the duration of the stream without the last frame */
2530 duration += ist->max_pts - ist->min_pts;
2531 ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
2535 if (ifile->loop > 0)
2542 * Read one packet from an input file and send it for
2543 * - decoding -> lavfi (audio/video)
2544 * - decoding -> encoding -> muxing (subtitles)
2545 * - muxing (streamcopy)
2548 * - 0 -- one packet was read and processed
2549 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2550 * this function should be called again
2551 * - AVERROR_EOF -- this function should not be called again
2553 static int process_input(void)
2556 AVFormatContext *is;
2562 /* select the stream that we must read now */
2563 ifile = select_input_file();
2564 /* if none, if is finished */
2569 return AVERROR(EAGAIN);
2571 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2576 ret = get_input_packet(ifile, &pkt);
2578 if (ret == AVERROR(EAGAIN)) {
2582 if (ret < 0 && ifile->loop) {
2583 if ((ret = seek_to_start(ifile, is)) < 0)
2585 ret = get_input_packet(ifile, &pkt);
2588 if (ret != AVERROR_EOF) {
2589 print_error(is->filename, ret);
2593 ifile->eof_reached = 1;
2595 for (i = 0; i < ifile->nb_streams; i++) {
2596 ist = input_streams[ifile->ist_index + i];
2597 if (ist->decoding_needed)
2598 process_input_packet(ist, NULL, 0);
2600 /* mark all outputs that don't go through lavfi as finished */
2601 for (j = 0; j < nb_output_streams; j++) {
2602 OutputStream *ost = output_streams[j];
2604 if (ost->source_index == ifile->ist_index + i &&
2605 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2606 finish_output_stream(ost);
2610 return AVERROR(EAGAIN);
2616 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2617 is->streams[pkt.stream_index]);
2619 /* the following test is needed in case new streams appear
2620 dynamically in stream : we ignore them */
2621 if (pkt.stream_index >= ifile->nb_streams)
2622 goto discard_packet;
2624 ist = input_streams[ifile->ist_index + pkt.stream_index];
2626 ist->data_size += pkt.size;
2630 goto discard_packet;
2632 /* add the stream-global side data to the first packet */
2633 if (ist->nb_packets == 1)
2634 for (i = 0; i < ist->st->nb_side_data; i++) {
2635 AVPacketSideData *src_sd = &ist->st->side_data[i];
2638 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2640 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2643 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2647 memcpy(dst_data, src_sd->data, src_sd->size);
2650 if (pkt.dts != AV_NOPTS_VALUE)
2651 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2652 if (pkt.pts != AV_NOPTS_VALUE)
2653 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2655 if (pkt.pts != AV_NOPTS_VALUE)
2656 pkt.pts *= ist->ts_scale;
2657 if (pkt.dts != AV_NOPTS_VALUE)
2658 pkt.dts *= ist->ts_scale;
2660 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2661 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2662 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2663 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2664 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2665 int64_t delta = pkt_dts - ist->next_dts;
2667 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2668 ifile->ts_offset -= delta;
2669 av_log(NULL, AV_LOG_DEBUG,
2670 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2671 delta, ifile->ts_offset);
2672 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2673 if (pkt.pts != AV_NOPTS_VALUE)
2674 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2677 duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
2678 if (pkt.pts != AV_NOPTS_VALUE) {
2679 pkt.pts += duration;
2680 ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
2681 ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
2684 if (pkt.dts != AV_NOPTS_VALUE)
2685 pkt.dts += duration;
2687 process_input_packet(ist, &pkt, 0);
2690 av_packet_unref(&pkt);
2696 * The following code is the main loop of the file converter
2698 static int transcode(void)
2700 int ret, i, need_input = 1;
2701 AVFormatContext *os;
2704 int64_t timer_start;
2706 ret = transcode_init();
2710 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2713 timer_start = av_gettime_relative();
2716 if ((ret = init_input_threads()) < 0)
2720 while (!received_sigterm) {
2721 /* check if there's any stream where output is still needed */
2722 if (!need_output()) {
2723 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2727 /* read and process one input packet if needed */
2729 ret = process_input();
2730 if (ret == AVERROR_EOF)
2734 ret = poll_filters();
2735 if (ret < 0 && ret != AVERROR_EOF) {
2737 av_strerror(ret, errbuf, sizeof(errbuf));
2739 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2743 /* dump report by using the output first video and audio streams */
2744 print_report(0, timer_start);
2747 free_input_threads();
2750 /* at the end of stream, we must flush the decoder buffers */
2751 for (i = 0; i < nb_input_streams; i++) {
2752 ist = input_streams[i];
2753 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2754 process_input_packet(ist, NULL, 0);
2762 /* write the trailer if needed and close file */
2763 for (i = 0; i < nb_output_files; i++) {
2764 os = output_files[i]->ctx;
2765 if (!output_files[i]->header_written) {
2766 av_log(NULL, AV_LOG_ERROR,
2767 "Nothing was written into output file %d (%s), because "
2768 "at least one of its streams received no packets.\n",
2772 av_write_trailer(os);
2775 /* dump report by using the first video and audio streams */
2776 print_report(1, timer_start);
2778 /* close each encoder */
2779 for (i = 0; i < nb_output_streams; i++) {
2780 ost = output_streams[i];
2781 if (ost->encoding_needed) {
2782 av_freep(&ost->enc_ctx->stats_in);
2786 /* close each decoder */
2787 for (i = 0; i < nb_input_streams; i++) {
2788 ist = input_streams[i];
2789 if (ist->decoding_needed) {
2790 avcodec_close(ist->dec_ctx);
2791 if (ist->hwaccel_uninit)
2792 ist->hwaccel_uninit(ist->dec_ctx);
2796 av_buffer_unref(&hw_device_ctx);
2803 free_input_threads();
2806 if (output_streams) {
2807 for (i = 0; i < nb_output_streams; i++) {
2808 ost = output_streams[i];
2811 fclose(ost->logfile);
2812 ost->logfile = NULL;
2814 av_free(ost->forced_kf_pts);
2815 av_dict_free(&ost->encoder_opts);
2816 av_dict_free(&ost->resample_opts);
2823 static int64_t getutime(void)
2826 struct rusage rusage;
2828 getrusage(RUSAGE_SELF, &rusage);
2829 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2830 #elif HAVE_GETPROCESSTIMES
2832 FILETIME c, e, k, u;
2833 proc = GetCurrentProcess();
2834 GetProcessTimes(proc, &c, &e, &k, &u);
2835 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2837 return av_gettime_relative();
2841 static int64_t getmaxrss(void)
2843 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2844 struct rusage rusage;
2845 getrusage(RUSAGE_SELF, &rusage);
2846 return (int64_t)rusage.ru_maxrss * 1024;
2847 #elif HAVE_GETPROCESSMEMORYINFO
2849 PROCESS_MEMORY_COUNTERS memcounters;
2850 proc = GetCurrentProcess();
2851 memcounters.cb = sizeof(memcounters);
2852 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2853 return memcounters.PeakPagefileUsage;
2859 int main(int argc, char **argv)
2864 register_exit(avconv_cleanup);
2866 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2867 parse_loglevel(argc, argv, options);
2869 avcodec_register_all();
2871 avdevice_register_all();
2873 avfilter_register_all();
2875 avformat_network_init();
2879 /* parse options and open all input/output files */
2880 ret = avconv_parse_options(argc, argv);
2884 if (nb_output_files <= 0 && nb_input_files == 0) {
2886 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2890 /* file converter / grab */
2891 if (nb_output_files <= 0) {
2892 fprintf(stderr, "At least one output file must be specified\n");
2896 for (i = 0; i < nb_output_files; i++) {
2897 if (strcmp(output_files[i]->ctx->oformat->name, "rtp"))
2902 if (transcode() < 0)
2904 ti = getutime() - ti;
2906 int maxrss = getmaxrss() / 1024;
2907 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);