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 av_packet_rescale_ts(pkt, ost->mux_timebase, ost->st->time_base);
331 if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
332 ost->last_mux_dts != AV_NOPTS_VALUE &&
333 pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
334 av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
335 "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
336 ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
338 av_log(NULL, AV_LOG_FATAL, "aborting.\n");
341 av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
342 "in incorrect timestamps in the output file.\n",
343 ost->last_mux_dts + 1);
344 pkt->dts = ost->last_mux_dts + 1;
345 if (pkt->pts != AV_NOPTS_VALUE)
346 pkt->pts = FFMAX(pkt->pts, pkt->dts);
348 ost->last_mux_dts = pkt->dts;
350 ost->data_size += pkt->size;
351 ost->packets_written++;
353 pkt->stream_index = ost->index;
355 ret = av_interleaved_write_frame(s, pkt);
357 print_error("av_interleaved_write_frame()", ret);
362 static void output_packet(OutputFile *of, AVPacket *pkt,
363 OutputStream *ost, int eof)
367 /* apply the output bitstream filters, if any */
368 if (ost->nb_bitstream_filters) {
371 ret = av_bsf_send_packet(ost->bsf_ctx[0], eof ? NULL : pkt);
378 /* get a packet from the previous filter up the chain */
379 ret = av_bsf_receive_packet(ost->bsf_ctx[idx - 1], pkt);
380 if (ret == AVERROR(EAGAIN)) {
384 } else if (ret == AVERROR_EOF) {
389 /* send it to the next filter down the chain or to the muxer */
390 if (idx < ost->nb_bitstream_filters) {
391 ret = av_bsf_send_packet(ost->bsf_ctx[idx], eof ? NULL : pkt);
399 write_packet(of, pkt, ost);
402 write_packet(of, pkt, ost);
405 if (ret < 0 && ret != AVERROR_EOF) {
406 av_log(NULL, AV_LOG_FATAL, "Error applying bitstream filters to an output "
407 "packet for stream #%d:%d.\n", ost->file_index, ost->index);
412 static int check_recording_time(OutputStream *ost)
414 OutputFile *of = output_files[ost->file_index];
416 if (of->recording_time != INT64_MAX &&
417 av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
418 AV_TIME_BASE_Q) >= 0) {
425 static void do_audio_out(OutputFile *of, OutputStream *ost,
428 AVCodecContext *enc = ost->enc_ctx;
432 av_init_packet(&pkt);
436 if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
437 frame->pts = ost->sync_opts;
438 ost->sync_opts = frame->pts + frame->nb_samples;
440 ost->samples_encoded += frame->nb_samples;
441 ost->frames_encoded++;
443 ret = avcodec_send_frame(enc, frame);
448 ret = avcodec_receive_packet(enc, &pkt);
449 if (ret == AVERROR(EAGAIN))
454 output_packet(of, &pkt, ost, 0);
459 av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
463 static void do_subtitle_out(OutputFile *of,
469 static uint8_t *subtitle_out = NULL;
470 int subtitle_out_max_size = 1024 * 1024;
471 int subtitle_out_size, nb, i;
475 if (pts == AV_NOPTS_VALUE) {
476 av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
485 subtitle_out = av_malloc(subtitle_out_max_size);
488 /* Note: DVB subtitle need one packet to draw them and one other
489 packet to clear them */
490 /* XXX: signal it in the codec context ? */
491 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE)
496 for (i = 0; i < nb; i++) {
497 ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
498 if (!check_recording_time(ost))
501 sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
502 // start_display_time is required to be 0
503 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
504 sub->end_display_time -= sub->start_display_time;
505 sub->start_display_time = 0;
507 ost->frames_encoded++;
509 subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
510 subtitle_out_max_size, sub);
511 if (subtitle_out_size < 0) {
512 av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
516 av_init_packet(&pkt);
517 pkt.data = subtitle_out;
518 pkt.size = subtitle_out_size;
519 pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->mux_timebase);
520 if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
521 /* XXX: the pts correction is handled here. Maybe handling
522 it in the codec would be better */
524 pkt.pts += 90 * sub->start_display_time;
526 pkt.pts += 90 * sub->end_display_time;
528 output_packet(of, &pkt, ost, 0);
532 static void do_video_out(OutputFile *of,
537 int ret, format_video_sync;
539 AVCodecContext *enc = ost->enc_ctx;
543 format_video_sync = video_sync_method;
544 if (format_video_sync == VSYNC_AUTO)
545 format_video_sync = (of->ctx->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
546 (of->ctx->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
547 if (format_video_sync != VSYNC_PASSTHROUGH &&
549 in_picture->pts != AV_NOPTS_VALUE &&
550 in_picture->pts < ost->sync_opts) {
552 av_log(NULL, AV_LOG_WARNING,
553 "*** dropping frame %d from stream %d at ts %"PRId64"\n",
554 ost->frame_number, ost->st->index, in_picture->pts);
558 if (in_picture->pts == AV_NOPTS_VALUE)
559 in_picture->pts = ost->sync_opts;
560 ost->sync_opts = in_picture->pts;
563 if (!ost->frame_number)
564 ost->first_pts = in_picture->pts;
566 av_init_packet(&pkt);
570 if (ost->frame_number >= ost->max_frames)
573 if (enc->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
574 ost->top_field_first >= 0)
575 in_picture->top_field_first = !!ost->top_field_first;
577 in_picture->quality = enc->global_quality;
578 in_picture->pict_type = 0;
579 if (ost->forced_kf_index < ost->forced_kf_count &&
580 in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
581 in_picture->pict_type = AV_PICTURE_TYPE_I;
582 ost->forced_kf_index++;
585 ost->frames_encoded++;
587 ret = avcodec_send_frame(enc, in_picture);
592 * For video, there may be reordering, so we can't throw away frames on
593 * encoder flush, we need to limit them here, before they go into encoder.
598 ret = avcodec_receive_packet(enc, &pkt);
599 if (ret == AVERROR(EAGAIN))
604 output_packet(of, &pkt, ost, 0);
605 *frame_size = pkt.size;
607 /* if two pass, output log */
608 if (ost->logfile && enc->stats_out) {
609 fprintf(ost->logfile, "%s", enc->stats_out);
617 av_assert0(ret != AVERROR(EAGAIN) && ret != AVERROR_EOF);
618 av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
622 #if FF_API_CODED_FRAME && FF_API_ERROR_FRAME
623 static double psnr(double d)
625 return -10.0 * log(d) / log(10.0);
629 static void do_video_stats(OutputStream *ost, int frame_size)
633 double ti1, bitrate, avg_bitrate;
635 /* this is executed just the first time do_video_stats is called */
637 vstats_file = fopen(vstats_filename, "w");
645 if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
646 frame_number = ost->frame_number;
647 fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number,
648 ost->quality / (float)FF_QP2LAMBDA);
650 #if FF_API_CODED_FRAME && FF_API_ERROR_FRAME
651 FF_DISABLE_DEPRECATION_WARNINGS
652 if (enc->flags & AV_CODEC_FLAG_PSNR)
653 fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
654 FF_ENABLE_DEPRECATION_WARNINGS
657 fprintf(vstats_file,"f_size= %6d ", frame_size);
658 /* compute pts value */
659 ti1 = ost->sync_opts * av_q2d(enc->time_base);
663 bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
664 avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
665 fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
666 (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate);
667 #if FF_API_CODED_FRAME
668 FF_DISABLE_DEPRECATION_WARNINGS
669 fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
670 FF_ENABLE_DEPRECATION_WARNINGS
675 static int init_output_stream(OutputStream *ost, char *error, int error_len);
678 * Read one frame for lavfi output for ost and encode it.
680 static int poll_filter(OutputStream *ost)
682 OutputFile *of = output_files[ost->file_index];
683 AVFrame *filtered_frame = NULL;
686 if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
687 return AVERROR(ENOMEM);
689 filtered_frame = ost->filtered_frame;
691 if (!ost->initialized) {
693 ret = init_output_stream(ost, error, sizeof(error));
695 av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
696 ost->file_index, ost->index, error);
701 if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
702 !(ost->enc->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
703 ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
704 ost->enc_ctx->frame_size);
706 ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
711 if (filtered_frame->pts != AV_NOPTS_VALUE) {
712 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
713 filtered_frame->pts = av_rescale_q(filtered_frame->pts,
714 ost->filter->filter->inputs[0]->time_base,
715 ost->enc_ctx->time_base) -
716 av_rescale_q(start_time,
718 ost->enc_ctx->time_base);
721 switch (ost->filter->filter->inputs[0]->type) {
722 case AVMEDIA_TYPE_VIDEO:
723 if (!ost->frame_aspect_ratio)
724 ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
726 do_video_out(of, ost, filtered_frame, &frame_size);
727 if (vstats_filename && frame_size)
728 do_video_stats(ost, frame_size);
730 case AVMEDIA_TYPE_AUDIO:
731 do_audio_out(of, ost, filtered_frame);
734 // TODO support subtitle filters
738 av_frame_unref(filtered_frame);
743 static void finish_output_stream(OutputStream *ost)
745 OutputFile *of = output_files[ost->file_index];
751 for (i = 0; i < of->ctx->nb_streams; i++)
752 output_streams[of->ost_index + i]->finished = 1;
757 * Read as many frames from possible from lavfi and encode them.
759 * Always read from the active stream with the lowest timestamp. If no frames
760 * are available for it then return EAGAIN and wait for more input. This way we
761 * can use lavfi sources that generate unlimited amount of frames without memory
764 static int poll_filters(void)
768 while (ret >= 0 && !received_sigterm) {
769 OutputStream *ost = NULL;
770 int64_t min_pts = INT64_MAX;
772 /* choose output stream with the lowest timestamp */
773 for (i = 0; i < nb_output_streams; i++) {
774 int64_t pts = output_streams[i]->sync_opts;
776 if (output_streams[i]->filter && !output_streams[i]->filter->graph->graph &&
777 !output_streams[i]->filter->graph->nb_inputs) {
778 ret = configure_filtergraph(output_streams[i]->filter->graph);
780 av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
785 if (!output_streams[i]->filter || output_streams[i]->finished ||
786 !output_streams[i]->filter->graph->graph)
789 pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
793 ost = output_streams[i];
800 ret = poll_filter(ost);
802 if (ret == AVERROR_EOF) {
803 finish_output_stream(ost);
805 } else if (ret == AVERROR(EAGAIN))
812 static void print_final_stats(int64_t total_size)
814 uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
815 uint64_t data_size = 0;
816 float percent = -1.0;
819 for (i = 0; i < nb_output_streams; i++) {
820 OutputStream *ost = output_streams[i];
821 switch (ost->enc_ctx->codec_type) {
822 case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
823 case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
824 default: other_size += ost->data_size; break;
826 extra_size += ost->enc_ctx->extradata_size;
827 data_size += ost->data_size;
830 if (data_size && total_size >= data_size)
831 percent = 100.0 * (total_size - data_size) / data_size;
833 av_log(NULL, AV_LOG_INFO, "\n");
834 av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
838 extra_size / 1024.0);
840 av_log(NULL, AV_LOG_INFO, "%f%%", percent);
842 av_log(NULL, AV_LOG_INFO, "unknown");
843 av_log(NULL, AV_LOG_INFO, "\n");
845 /* print verbose per-stream stats */
846 for (i = 0; i < nb_input_files; i++) {
847 InputFile *f = input_files[i];
848 uint64_t total_packets = 0, total_size = 0;
850 av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n",
851 i, f->ctx->filename);
853 for (j = 0; j < f->nb_streams; j++) {
854 InputStream *ist = input_streams[f->ist_index + j];
855 enum AVMediaType type = ist->dec_ctx->codec_type;
857 total_size += ist->data_size;
858 total_packets += ist->nb_packets;
860 av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ",
861 i, j, media_type_string(type));
862 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ",
863 ist->nb_packets, ist->data_size);
865 if (ist->decoding_needed) {
866 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded",
867 ist->frames_decoded);
868 if (type == AVMEDIA_TYPE_AUDIO)
869 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded);
870 av_log(NULL, AV_LOG_VERBOSE, "; ");
873 av_log(NULL, AV_LOG_VERBOSE, "\n");
876 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n",
877 total_packets, total_size);
880 for (i = 0; i < nb_output_files; i++) {
881 OutputFile *of = output_files[i];
882 uint64_t total_packets = 0, total_size = 0;
884 av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
885 i, of->ctx->filename);
887 for (j = 0; j < of->ctx->nb_streams; j++) {
888 OutputStream *ost = output_streams[of->ost_index + j];
889 enum AVMediaType type = ost->enc_ctx->codec_type;
891 total_size += ost->data_size;
892 total_packets += ost->packets_written;
894 av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
895 i, j, media_type_string(type));
896 if (ost->encoding_needed) {
897 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
898 ost->frames_encoded);
899 if (type == AVMEDIA_TYPE_AUDIO)
900 av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded);
901 av_log(NULL, AV_LOG_VERBOSE, "; ");
904 av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
905 ost->packets_written, ost->data_size);
907 av_log(NULL, AV_LOG_VERBOSE, "\n");
910 av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
911 total_packets, total_size);
915 static void print_report(int is_last_report, int64_t timer_start)
920 int64_t total_size = 0;
922 int frame_number, vid, i;
923 double bitrate, ti1, pts;
924 static int64_t last_time = -1;
925 static int qp_histogram[52];
927 if (!print_stats && !is_last_report)
930 if (!is_last_report) {
932 /* display the report every 0.5 seconds */
933 cur_time = av_gettime_relative();
934 if (last_time == -1) {
935 last_time = cur_time;
938 if ((cur_time - last_time) < 500000)
940 last_time = cur_time;
944 oc = output_files[0]->ctx;
946 total_size = avio_size(oc->pb);
947 if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
948 total_size = avio_tell(oc->pb);
949 if (total_size < 0) {
951 av_strerror(total_size, errbuf, sizeof(errbuf));
952 av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
953 "avio_tell() failed: %s\n", errbuf);
961 for (i = 0; i < nb_output_streams; i++) {
963 ost = output_streams[i];
965 if (!ost->stream_copy)
966 q = ost->quality / (float) FF_QP2LAMBDA;
968 if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
969 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
971 if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
972 float t = (av_gettime_relative() - timer_start) / 1000000.0;
974 frame_number = ost->frame_number;
975 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
976 frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
978 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
982 if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
984 for (j = 0; j < 32; j++)
985 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
988 #if FF_API_CODED_FRAME && FF_API_ERROR_FRAME
989 FF_DISABLE_DEPRECATION_WARNINGS
990 if (enc->flags & AV_CODEC_FLAG_PSNR) {
992 double error, error_sum = 0;
993 double scale, scale_sum = 0;
994 char type[3] = { 'Y','U','V' };
995 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
996 for (j = 0; j < 3; j++) {
997 if (is_last_report) {
998 error = enc->error[j];
999 scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
1001 error = enc->coded_frame->error[j];
1002 scale = enc->width * enc->height * 255.0 * 255.0;
1008 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
1010 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
1012 FF_ENABLE_DEPRECATION_WARNINGS
1016 /* compute min output value */
1017 pts = (double)ost->last_mux_dts * av_q2d(ost->st->time_base);
1018 if ((pts < ti1) && (pts > 0))
1024 bitrate = (double)(total_size * 8) / ti1 / 1000.0;
1026 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1027 "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
1028 (double)total_size / 1024, ti1, bitrate);
1031 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
1034 av_log(NULL, AV_LOG_INFO, "%s \r", buf);
1039 print_final_stats(total_size);
1043 static void flush_encoders(void)
1047 for (i = 0; i < nb_output_streams; i++) {
1048 OutputStream *ost = output_streams[i];
1049 AVCodecContext *enc = ost->enc_ctx;
1050 OutputFile *of = output_files[ost->file_index];
1051 int stop_encoding = 0;
1053 if (!ost->encoding_needed)
1056 if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
1059 if (enc->codec_type != AVMEDIA_TYPE_VIDEO && enc->codec_type != AVMEDIA_TYPE_AUDIO)
1062 avcodec_send_frame(enc, NULL);
1065 const char *desc = NULL;
1067 switch (enc->codec_type) {
1068 case AVMEDIA_TYPE_AUDIO:
1071 case AVMEDIA_TYPE_VIDEO:
1080 av_init_packet(&pkt);
1084 ret = avcodec_receive_packet(enc, &pkt);
1085 if (ret < 0 && ret != AVERROR_EOF) {
1086 av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
1089 if (ost->logfile && enc->stats_out) {
1090 fprintf(ost->logfile, "%s", enc->stats_out);
1092 output_packet(of, &pkt, ost, ret == AVERROR_EOF);
1093 if (ret == AVERROR_EOF) {
1106 * Check whether a packet from ist should be written into ost at this time
1108 static int check_output_constraints(InputStream *ist, OutputStream *ost)
1110 OutputFile *of = output_files[ost->file_index];
1111 int ist_index = input_files[ist->file_index]->ist_index + ist->st->index;
1113 if (ost->source_index != ist_index)
1116 if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
1122 static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
1124 OutputFile *of = output_files[ost->file_index];
1125 InputFile *f = input_files [ist->file_index];
1126 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
1127 int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->mux_timebase);
1130 av_init_packet(&opkt);
1132 if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
1133 !ost->copy_initial_nonkeyframes)
1136 if (of->recording_time != INT64_MAX &&
1137 ist->last_dts >= of->recording_time + start_time) {
1142 if (f->recording_time != INT64_MAX) {
1143 start_time = f->ctx->start_time;
1144 if (f->start_time != AV_NOPTS_VALUE)
1145 start_time += f->start_time;
1146 if (ist->last_dts >= f->recording_time + start_time) {
1152 /* force the input stream PTS */
1153 if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
1156 if (pkt->pts != AV_NOPTS_VALUE)
1157 opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->mux_timebase) - ost_tb_start_time;
1159 opkt.pts = AV_NOPTS_VALUE;
1161 if (pkt->dts == AV_NOPTS_VALUE)
1162 opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->mux_timebase);
1164 opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->mux_timebase);
1165 opkt.dts -= ost_tb_start_time;
1167 opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->mux_timebase);
1168 opkt.flags = pkt->flags;
1170 // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
1171 if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
1172 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
1173 && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
1174 && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
1176 if (av_parser_change(ost->parser, ost->parser_avctx,
1177 &opkt.data, &opkt.size,
1178 pkt->data, pkt->size,
1179 pkt->flags & AV_PKT_FLAG_KEY)) {
1180 opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0);
1185 opkt.data = pkt->data;
1186 opkt.size = pkt->size;
1189 output_packet(of, &opkt, ost, 0);
1192 static int ifilter_send_frame(InputFilter *ifilter, AVFrame *frame)
1194 FilterGraph *fg = ifilter->graph;
1195 int need_reinit, ret, i;
1197 /* determine if the parameters for this input changed */
1198 need_reinit = ifilter->format != frame->format;
1199 if (!!ifilter->hw_frames_ctx != !!frame->hw_frames_ctx ||
1200 (ifilter->hw_frames_ctx && ifilter->hw_frames_ctx->data != frame->hw_frames_ctx->data))
1203 switch (ifilter->ist->st->codecpar->codec_type) {
1204 case AVMEDIA_TYPE_AUDIO:
1205 need_reinit |= ifilter->sample_rate != frame->sample_rate ||
1206 ifilter->channel_layout != frame->channel_layout;
1208 case AVMEDIA_TYPE_VIDEO:
1209 need_reinit |= ifilter->width != frame->width ||
1210 ifilter->height != frame->height;
1215 ret = ifilter_parameters_from_frame(ifilter, frame);
1220 /* (re)init the graph if possible, otherwise buffer the frame and return */
1221 if (need_reinit || !fg->graph) {
1222 for (i = 0; i < fg->nb_inputs; i++) {
1223 if (fg->inputs[i]->format < 0) {
1224 AVFrame *tmp = av_frame_clone(frame);
1226 return AVERROR(ENOMEM);
1227 av_frame_unref(frame);
1229 if (!av_fifo_space(ifilter->frame_queue)) {
1230 ret = av_fifo_realloc2(ifilter->frame_queue, 2 * av_fifo_size(ifilter->frame_queue));
1234 av_fifo_generic_write(ifilter->frame_queue, &tmp, sizeof(tmp), NULL);
1239 ret = poll_filters();
1240 if (ret < 0 && ret != AVERROR_EOF) {
1242 av_strerror(ret, errbuf, sizeof(errbuf));
1244 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
1248 ret = configure_filtergraph(fg);
1250 av_log(NULL, AV_LOG_ERROR, "Error reinitializing filters!\n");
1255 ret = av_buffersrc_add_frame(ifilter->filter, frame);
1257 av_log(NULL, AV_LOG_ERROR, "Error while filtering\n");
1264 static int ifilter_send_eof(InputFilter *ifilter)
1270 if (ifilter->filter) {
1271 ret = av_buffersrc_add_frame(ifilter->filter, NULL);
1275 // the filtergraph was never configured
1276 FilterGraph *fg = ifilter->graph;
1277 for (i = 0; i < fg->nb_inputs; i++)
1278 if (!fg->inputs[i]->eof)
1280 if (i == fg->nb_inputs) {
1281 // All the input streams have finished without the filtergraph
1282 // ever being configured.
1283 // Mark the output streams as finished.
1284 for (j = 0; j < fg->nb_outputs; j++)
1285 finish_output_stream(fg->outputs[j]->ost);
1292 // This does not quite work like avcodec_decode_audio4/avcodec_decode_video2.
1293 // There is the following difference: if you got a frame, you must call
1294 // it again with pkt=NULL. pkt==NULL is treated differently from pkt.size==0
1295 // (pkt==NULL means get more output, pkt.size==0 is a flush/drain packet)
1296 static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
1303 ret = avcodec_send_packet(avctx, pkt);
1304 // In particular, we don't expect AVERROR(EAGAIN), because we read all
1305 // decoded frames with avcodec_receive_frame() until done.
1307 return ret == AVERROR_EOF ? 0 : ret;
1310 ret = avcodec_receive_frame(avctx, frame);
1311 if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
1319 int guess_input_channel_layout(InputStream *ist)
1321 AVCodecContext *dec = ist->dec_ctx;
1323 if (!dec->channel_layout) {
1324 char layout_name[256];
1326 dec->channel_layout = av_get_default_channel_layout(dec->channels);
1327 if (!dec->channel_layout)
1329 av_get_channel_layout_string(layout_name, sizeof(layout_name),
1330 dec->channels, dec->channel_layout);
1331 av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
1332 "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
1337 static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output,
1340 AVFrame *decoded_frame, *f;
1341 AVCodecContext *avctx = ist->dec_ctx;
1342 int i, ret, err = 0;
1344 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1345 return AVERROR(ENOMEM);
1346 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1347 return AVERROR(ENOMEM);
1348 decoded_frame = ist->decoded_frame;
1350 ret = decode(avctx, decoded_frame, got_output, pkt);
1353 if (!*got_output || ret < 0)
1356 ist->samples_decoded += decoded_frame->nb_samples;
1357 ist->frames_decoded++;
1359 /* if the decoder provides a pts, use it instead of the last packet pts.
1360 the decoder could be delaying output by a packet or more. */
1361 if (decoded_frame->pts != AV_NOPTS_VALUE)
1362 ist->next_dts = av_rescale_q(decoded_frame->pts, ist->st->time_base, AV_TIME_BASE_Q);
1363 else if (pkt && pkt->pts != AV_NOPTS_VALUE) {
1364 decoded_frame->pts = pkt->pts;
1367 if (decoded_frame->pts != AV_NOPTS_VALUE)
1368 decoded_frame->pts = av_rescale_q(decoded_frame->pts,
1370 (AVRational){1, avctx->sample_rate});
1371 ist->nb_samples = decoded_frame->nb_samples;
1372 for (i = 0; i < ist->nb_filters; i++) {
1373 if (i < ist->nb_filters - 1) {
1374 f = ist->filter_frame;
1375 err = av_frame_ref(f, decoded_frame);
1381 err = ifilter_send_frame(ist->filters[i], f);
1386 av_frame_unref(ist->filter_frame);
1387 av_frame_unref(decoded_frame);
1388 return err < 0 ? err : ret;
1391 static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output,
1394 AVFrame *decoded_frame, *f;
1395 int i, ret = 0, err = 0;
1397 if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
1398 return AVERROR(ENOMEM);
1399 if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
1400 return AVERROR(ENOMEM);
1401 decoded_frame = ist->decoded_frame;
1403 ret = decode(ist->dec_ctx, decoded_frame, got_output, pkt);
1406 if (!*got_output || ret < 0)
1409 ist->frames_decoded++;
1411 if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
1412 err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame);
1416 ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
1418 decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pts,
1419 decoded_frame->pkt_dts);
1420 if (ist->framerate.num)
1421 decoded_frame->pts = ist->cfr_next_pts++;
1423 if (ist->st->sample_aspect_ratio.num)
1424 decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
1426 for (i = 0; i < ist->nb_filters; i++) {
1427 if (i < ist->nb_filters - 1) {
1428 f = ist->filter_frame;
1429 err = av_frame_ref(f, decoded_frame);
1435 err = ifilter_send_frame(ist->filters[i], f);
1441 av_frame_unref(ist->filter_frame);
1442 av_frame_unref(decoded_frame);
1443 return err < 0 ? err : ret;
1446 static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output,
1449 AVSubtitle subtitle;
1450 int i, ret = avcodec_decode_subtitle2(ist->dec_ctx,
1451 &subtitle, got_output, pkt);
1459 ist->frames_decoded++;
1461 for (i = 0; i < nb_output_streams; i++) {
1462 OutputStream *ost = output_streams[i];
1464 if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
1467 do_subtitle_out(output_files[ost->file_index], ost, ist, &subtitle, pkt->pts);
1470 avsubtitle_free(&subtitle);
1474 static int send_filter_eof(InputStream *ist)
1477 for (i = 0; i < ist->nb_filters; i++) {
1478 ret = ifilter_send_eof(ist->filters[i]);
1485 /* pkt = NULL means EOF (needed to flush decoder buffers) */
1486 static void process_input_packet(InputStream *ist, const AVPacket *pkt, int no_eof)
1492 if (ist->next_dts == AV_NOPTS_VALUE)
1493 ist->next_dts = ist->last_dts;
1497 av_init_packet(&avpkt);
1504 if (pkt && pkt->dts != AV_NOPTS_VALUE)
1505 ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
1507 // while we have more to decode or while the decoder did output something on EOF
1508 while (ist->decoding_needed && (!pkt || avpkt.size > 0)) {
1511 int decode_failed = 0;
1514 ist->last_dts = ist->next_dts;
1516 switch (ist->dec_ctx->codec_type) {
1517 case AVMEDIA_TYPE_AUDIO:
1518 ret = decode_audio (ist, repeating ? NULL : &avpkt, &got_output,
1521 case AVMEDIA_TYPE_VIDEO:
1522 ret = decode_video (ist, repeating ? NULL : &avpkt, &got_output,
1524 if (repeating && !got_output)
1526 else if (pkt && pkt->duration)
1527 ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
1528 else if (ist->st->avg_frame_rate.num)
1529 ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
1531 else if (ist->dec_ctx->framerate.num != 0) {
1532 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
1533 ist->dec_ctx->ticks_per_frame;
1534 ist->next_dts += av_rescale_q(ticks, ist->dec_ctx->framerate, AV_TIME_BASE_Q);
1537 case AVMEDIA_TYPE_SUBTITLE:
1540 ret = transcode_subtitles(ist, &avpkt, &got_output, &decode_failed);
1547 if (decode_failed) {
1548 av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
1549 ist->file_index, ist->st->index);
1551 av_log(NULL, AV_LOG_FATAL, "Error while processing the decoded "
1552 "data for stream #%d:%d\n", ist->file_index, ist->st->index);
1554 if (!decode_failed || exit_on_error)
1565 /* after flushing, send an EOF on all the filter inputs attached to the stream */
1566 /* except when looping we need to flush but not to send an EOF */
1567 if (!pkt && ist->decoding_needed && !no_eof) {
1568 int ret = send_filter_eof(ist);
1570 av_log(NULL, AV_LOG_FATAL, "Error marking filters as finished\n");
1575 /* handle stream copy */
1576 if (!ist->decoding_needed) {
1577 ist->last_dts = ist->next_dts;
1578 switch (ist->dec_ctx->codec_type) {
1579 case AVMEDIA_TYPE_AUDIO:
1580 ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) /
1581 ist->dec_ctx->sample_rate;
1583 case AVMEDIA_TYPE_VIDEO:
1584 if (ist->dec_ctx->framerate.num != 0) {
1585 int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame;
1586 ist->next_dts += ((int64_t)AV_TIME_BASE *
1587 ist->dec_ctx->framerate.den * ticks) /
1588 ist->dec_ctx->framerate.num;
1593 for (i = 0; pkt && i < nb_output_streams; i++) {
1594 OutputStream *ost = output_streams[i];
1596 if (!check_output_constraints(ist, ost) || ost->encoding_needed)
1599 do_streamcopy(ist, ost, pkt);
1605 static void print_sdp(void)
1609 AVFormatContext **avc;
1611 for (i = 0; i < nb_output_files; i++) {
1612 if (!output_files[i]->header_written)
1616 avc = av_malloc(sizeof(*avc) * nb_output_files);
1619 for (i = 0; i < nb_output_files; i++)
1620 avc[i] = output_files[i]->ctx;
1622 av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp));
1623 printf("SDP:\n%s\n", sdp);
1628 static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt)
1631 for (i = 0; hwaccels[i].name; i++)
1632 if (hwaccels[i].pix_fmt == pix_fmt)
1633 return &hwaccels[i];
1637 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1639 InputStream *ist = s->opaque;
1640 const enum AVPixelFormat *p;
1643 for (p = pix_fmts; *p != -1; p++) {
1644 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1645 const HWAccel *hwaccel;
1647 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1650 hwaccel = get_hwaccel(*p);
1652 (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) ||
1653 (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id))
1656 ret = hwaccel->init(s);
1658 if (ist->hwaccel_id == hwaccel->id) {
1659 av_log(NULL, AV_LOG_FATAL,
1660 "%s hwaccel requested for input stream #%d:%d, "
1661 "but cannot be initialized.\n", hwaccel->name,
1662 ist->file_index, ist->st->index);
1663 return AV_PIX_FMT_NONE;
1668 if (ist->hw_frames_ctx) {
1669 s->hw_frames_ctx = av_buffer_ref(ist->hw_frames_ctx);
1670 if (!s->hw_frames_ctx)
1671 return AV_PIX_FMT_NONE;
1674 ist->active_hwaccel_id = hwaccel->id;
1675 ist->hwaccel_pix_fmt = *p;
1682 static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
1684 InputStream *ist = s->opaque;
1686 if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt)
1687 return ist->hwaccel_get_buffer(s, frame, flags);
1689 return avcodec_default_get_buffer2(s, frame, flags);
1692 static int init_input_stream(int ist_index, char *error, int error_len)
1695 InputStream *ist = input_streams[ist_index];
1697 if (ist->decoding_needed) {
1698 AVCodec *codec = ist->dec;
1700 snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
1701 ist->dec_ctx->codec_id, ist->file_index, ist->st->index);
1702 return AVERROR(EINVAL);
1705 ist->dec_ctx->opaque = ist;
1706 ist->dec_ctx->get_format = get_format;
1707 ist->dec_ctx->get_buffer2 = get_buffer;
1708 ist->dec_ctx->thread_safe_callbacks = 1;
1710 av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0);
1712 if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
1713 av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
1715 ret = hw_device_setup_for_decode(ist);
1718 av_strerror(ret, errbuf, sizeof(errbuf));
1719 snprintf(error, error_len, "Device setup failed for "
1720 "decoder on input stream #%d:%d : %s",
1721 ist->file_index, ist->st->index, errbuf);
1725 if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) {
1727 if (ret == AVERROR_EXPERIMENTAL)
1728 abort_codec_experimental(codec, 0);
1730 av_strerror(ret, errbuf, sizeof(errbuf));
1732 snprintf(error, error_len,
1733 "Error while opening decoder for input stream "
1735 ist->file_index, ist->st->index, errbuf);
1738 assert_avoptions(ist->decoder_opts);
1741 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;
1742 ist->next_dts = AV_NOPTS_VALUE;
1743 init_pts_correction(&ist->pts_ctx);
1748 static InputStream *get_input_stream(OutputStream *ost)
1750 if (ost->source_index >= 0)
1751 return input_streams[ost->source_index];
1754 FilterGraph *fg = ost->filter->graph;
1757 for (i = 0; i < fg->nb_inputs; i++)
1758 if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
1759 return fg->inputs[i]->ist;
1765 /* open the muxer when all the streams are initialized */
1766 static int check_init_output_file(OutputFile *of, int file_index)
1770 for (i = 0; i < of->ctx->nb_streams; i++) {
1771 OutputStream *ost = output_streams[of->ost_index + i];
1772 if (!ost->initialized)
1776 of->ctx->interrupt_callback = int_cb;
1778 ret = avformat_write_header(of->ctx, &of->opts);
1782 av_strerror(ret, errbuf, sizeof(errbuf));
1784 av_log(NULL, AV_LOG_ERROR,
1785 "Could not write header for output file #%d "
1786 "(incorrect codec parameters ?): %s",
1787 file_index, errbuf);
1790 assert_avoptions(of->opts);
1791 of->header_written = 1;
1793 av_dump_format(of->ctx, file_index, of->ctx->filename, 1);
1798 /* flush the muxing queues */
1799 for (i = 0; i < of->ctx->nb_streams; i++) {
1800 OutputStream *ost = output_streams[of->ost_index + i];
1802 while (av_fifo_size(ost->muxing_queue)) {
1804 av_fifo_generic_read(ost->muxing_queue, &pkt, sizeof(pkt), NULL);
1805 write_packet(of, &pkt, ost);
1812 static int init_output_bsfs(OutputStream *ost)
1817 if (!ost->nb_bitstream_filters)
1820 for (i = 0; i < ost->nb_bitstream_filters; i++) {
1821 ctx = ost->bsf_ctx[i];
1823 ret = avcodec_parameters_copy(ctx->par_in,
1824 i ? ost->bsf_ctx[i - 1]->par_out : ost->st->codecpar);
1828 ctx->time_base_in = i ? ost->bsf_ctx[i - 1]->time_base_out : ost->st->time_base;
1830 ret = av_bsf_init(ctx);
1832 av_log(NULL, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
1838 ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
1842 ost->st->time_base = ctx->time_base_out;
1847 static int init_output_stream_streamcopy(OutputStream *ost)
1849 OutputFile *of = output_files[ost->file_index];
1850 InputStream *ist = get_input_stream(ost);
1851 AVCodecParameters *par_dst = ost->st->codecpar;
1852 AVCodecParameters *par_src = ist->st->codecpar;
1854 uint32_t codec_tag = par_dst->codec_tag;
1858 if (!of->ctx->oformat->codec_tag ||
1859 av_codec_get_id (of->ctx->oformat->codec_tag, par_src->codec_tag) == par_src->codec_id ||
1860 av_codec_get_tag(of->ctx->oformat->codec_tag, par_src->codec_id) <= 0)
1861 codec_tag = par_src->codec_tag;
1864 ret = avcodec_parameters_copy(par_dst, par_src);
1868 par_dst->codec_tag = codec_tag;
1870 ost->st->disposition = ist->st->disposition;
1872 ost->st->time_base = ist->st->time_base;
1874 if (ost->bitrate_override)
1875 par_dst->bit_rate = ost->bitrate_override;
1877 if (ist->st->nb_side_data) {
1878 ost->st->side_data = av_realloc_array(NULL, ist->st->nb_side_data,
1879 sizeof(*ist->st->side_data));
1880 if (!ost->st->side_data)
1881 return AVERROR(ENOMEM);
1883 for (i = 0; i < ist->st->nb_side_data; i++) {
1884 const AVPacketSideData *sd_src = &ist->st->side_data[i];
1885 AVPacketSideData *sd_dst = &ost->st->side_data[i];
1887 sd_dst->data = av_malloc(sd_src->size);
1889 return AVERROR(ENOMEM);
1890 memcpy(sd_dst->data, sd_src->data, sd_src->size);
1891 sd_dst->size = sd_src->size;
1892 sd_dst->type = sd_src->type;
1893 ost->st->nb_side_data++;
1897 ost->parser = av_parser_init(par_dst->codec_id);
1898 ost->parser_avctx = avcodec_alloc_context3(NULL);
1899 if (!ost->parser_avctx)
1900 return AVERROR(ENOMEM);
1902 if (par_dst->codec_type == AVMEDIA_TYPE_VIDEO) {
1903 if (ost->frame_aspect_ratio)
1904 sar = av_d2q(ost->frame_aspect_ratio * par_dst->height / par_dst->width, 255);
1905 else if (ist->st->sample_aspect_ratio.num)
1906 sar = ist->st->sample_aspect_ratio;
1908 sar = par_src->sample_aspect_ratio;
1909 ost->st->sample_aspect_ratio = par_dst->sample_aspect_ratio = sar;
1915 static void set_encoder_id(OutputFile *of, OutputStream *ost)
1917 AVDictionaryEntry *e;
1919 uint8_t *encoder_string;
1920 int encoder_string_len;
1921 int format_flags = 0;
1923 e = av_dict_get(of->opts, "fflags", NULL, 0);
1925 const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0);
1928 av_opt_eval_flags(of->ctx, o, e->value, &format_flags);
1931 encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2;
1932 encoder_string = av_mallocz(encoder_string_len);
1933 if (!encoder_string)
1936 if (!(format_flags & AVFMT_FLAG_BITEXACT))
1937 av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
1938 av_strlcat(encoder_string, ost->enc->name, encoder_string_len);
1939 av_dict_set(&ost->st->metadata, "encoder", encoder_string,
1940 AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
1943 static void parse_forced_key_frames(char *kf, OutputStream *ost,
1944 AVCodecContext *avctx)
1950 for (p = kf; *p; p++)
1953 ost->forced_kf_count = n;
1954 ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
1955 if (!ost->forced_kf_pts) {
1956 av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
1961 for (i = 0; i < n; i++) {
1962 char *next = strchr(p, ',');
1967 t = parse_time_or_die("force_key_frames", p, 1);
1968 ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
1974 static int init_output_stream_encode(OutputStream *ost)
1976 InputStream *ist = get_input_stream(ost);
1977 AVCodecContext *enc_ctx = ost->enc_ctx;
1978 AVCodecContext *dec_ctx = NULL;
1980 set_encoder_id(output_files[ost->file_index], ost);
1983 ost->st->disposition = ist->st->disposition;
1985 dec_ctx = ist->dec_ctx;
1987 enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample;
1988 enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location;
1991 switch (enc_ctx->codec_type) {
1992 case AVMEDIA_TYPE_AUDIO:
1993 enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format;
1994 enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate;
1995 enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
1996 enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
1997 enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate };
1999 case AVMEDIA_TYPE_VIDEO:
2000 enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base;
2002 enc_ctx->width = ost->filter->filter->inputs[0]->w;
2003 enc_ctx->height = ost->filter->filter->inputs[0]->h;
2004 enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
2005 ost->frame_aspect_ratio ? // overridden by the -aspect cli option
2006 av_d2q(ost->frame_aspect_ratio * enc_ctx->height/enc_ctx->width, 255) :
2007 ost->filter->filter->inputs[0]->sample_aspect_ratio;
2008 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
2010 enc_ctx->framerate = ost->frame_rate;
2012 ost->st->avg_frame_rate = ost->frame_rate;
2015 (enc_ctx->width != dec_ctx->width ||
2016 enc_ctx->height != dec_ctx->height ||
2017 enc_ctx->pix_fmt != dec_ctx->pix_fmt)) {
2018 enc_ctx->bits_per_raw_sample = 0;
2021 if (ost->forced_keyframes)
2022 parse_forced_key_frames(ost->forced_keyframes, ost,
2025 case AVMEDIA_TYPE_SUBTITLE:
2026 enc_ctx->time_base = (AVRational){1, 1000};
2036 static int init_output_stream(OutputStream *ost, char *error, int error_len)
2040 if (ost->encoding_needed) {
2041 AVCodec *codec = ost->enc;
2042 AVCodecContext *dec = NULL;
2045 ret = init_output_stream_encode(ost);
2049 if ((ist = get_input_stream(ost)))
2051 if (dec && dec->subtitle_header) {
2052 ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
2053 if (!ost->enc_ctx->subtitle_header)
2054 return AVERROR(ENOMEM);
2055 memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
2056 ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
2058 if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
2059 av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
2061 if (ost->filter && ost->filter->filter->inputs[0]->hw_frames_ctx &&
2062 ((AVHWFramesContext*)ost->filter->filter->inputs[0]->hw_frames_ctx->data)->format ==
2063 ost->filter->filter->inputs[0]->format) {
2064 ost->enc_ctx->hw_frames_ctx = av_buffer_ref(ost->filter->filter->inputs[0]->hw_frames_ctx);
2065 if (!ost->enc_ctx->hw_frames_ctx)
2066 return AVERROR(ENOMEM);
2068 ret = hw_device_setup_for_encode(ost);
2071 av_strerror(ret, errbuf, sizeof(errbuf));
2072 snprintf(error, error_len, "Device setup failed for "
2073 "encoder on output stream #%d:%d : %s",
2074 ost->file_index, ost->index, errbuf);
2079 if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
2080 if (ret == AVERROR_EXPERIMENTAL)
2081 abort_codec_experimental(codec, 1);
2082 snprintf(error, error_len,
2083 "Error while opening encoder for output stream #%d:%d - "
2084 "maybe incorrect parameters such as bit_rate, rate, width or height",
2085 ost->file_index, ost->index);
2088 assert_avoptions(ost->encoder_opts);
2089 if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
2090 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
2091 "It takes bits/s as argument, not kbits/s\n");
2093 ret = avcodec_parameters_from_context(ost->st->codecpar, ost->enc_ctx);
2095 av_log(NULL, AV_LOG_FATAL,
2096 "Error initializing the output stream codec context.\n");
2100 if (ost->enc_ctx->nb_coded_side_data) {
2103 ost->st->side_data = av_realloc_array(NULL, ost->enc_ctx->nb_coded_side_data,
2104 sizeof(*ost->st->side_data));
2105 if (!ost->st->side_data)
2106 return AVERROR(ENOMEM);
2108 for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
2109 const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
2110 AVPacketSideData *sd_dst = &ost->st->side_data[i];
2112 sd_dst->data = av_malloc(sd_src->size);
2114 return AVERROR(ENOMEM);
2115 memcpy(sd_dst->data, sd_src->data, sd_src->size);
2116 sd_dst->size = sd_src->size;
2117 sd_dst->type = sd_src->type;
2118 ost->st->nb_side_data++;
2122 ost->st->time_base = ost->enc_ctx->time_base;
2123 } else if (ost->stream_copy) {
2124 ret = init_output_stream_streamcopy(ost);
2129 * FIXME: will the codec context used by the parser during streamcopy
2130 * This should go away with the new parser API.
2132 ret = avcodec_parameters_to_context(ost->parser_avctx, ost->st->codecpar);
2137 /* initialize bitstream filters for the output stream
2138 * needs to be done here, because the codec id for streamcopy is not
2139 * known until now */
2140 ret = init_output_bsfs(ost);
2144 ost->mux_timebase = ost->st->time_base;
2146 ost->initialized = 1;
2148 ret = check_init_output_file(output_files[ost->file_index], ost->file_index);
2155 static int transcode_init(void)
2157 int ret = 0, i, j, k;
2162 /* init framerate emulation */
2163 for (i = 0; i < nb_input_files; i++) {
2164 InputFile *ifile = input_files[i];
2165 if (ifile->rate_emu)
2166 for (j = 0; j < ifile->nb_streams; j++)
2167 input_streams[j + ifile->ist_index]->start = av_gettime_relative();
2170 /* init input streams */
2171 for (i = 0; i < nb_input_streams; i++)
2172 if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
2175 /* open each encoder */
2176 for (i = 0; i < nb_output_streams; i++) {
2177 // skip streams fed from filtergraphs until we have a frame for them
2178 if (output_streams[i]->filter)
2181 ret = init_output_stream(output_streams[i], error, sizeof(error));
2187 /* discard unused programs */
2188 for (i = 0; i < nb_input_files; i++) {
2189 InputFile *ifile = input_files[i];
2190 for (j = 0; j < ifile->ctx->nb_programs; j++) {
2191 AVProgram *p = ifile->ctx->programs[j];
2192 int discard = AVDISCARD_ALL;
2194 for (k = 0; k < p->nb_stream_indexes; k++)
2195 if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) {
2196 discard = AVDISCARD_DEFAULT;
2199 p->discard = discard;
2204 /* dump the stream mapping */
2205 av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
2206 for (i = 0; i < nb_input_streams; i++) {
2207 ist = input_streams[i];
2209 for (j = 0; j < ist->nb_filters; j++) {
2210 if (!filtergraph_is_simple(ist->filters[j]->graph)) {
2211 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s",
2212 ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?",
2213 ist->filters[j]->name);
2214 if (nb_filtergraphs > 1)
2215 av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index);
2216 av_log(NULL, AV_LOG_INFO, "\n");
2221 for (i = 0; i < nb_output_streams; i++) {
2222 ost = output_streams[i];
2224 if (ost->attachment_filename) {
2225 /* an attached file */
2226 av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
2227 ost->attachment_filename, ost->file_index, ost->index);
2231 if (ost->filter && !filtergraph_is_simple(ost->filter->graph)) {
2232 /* output from a complex graph */
2233 av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name);
2234 if (nb_filtergraphs > 1)
2235 av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index);
2237 av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index,
2238 ost->index, ost->enc ? ost->enc->name : "?");
2242 av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
2243 input_streams[ost->source_index]->file_index,
2244 input_streams[ost->source_index]->st->index,
2247 if (ost->sync_ist != input_streams[ost->source_index])
2248 av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
2249 ost->sync_ist->file_index,
2250 ost->sync_ist->st->index);
2251 if (ost->stream_copy)
2252 av_log(NULL, AV_LOG_INFO, " (copy)");
2254 const AVCodec *in_codec = input_streams[ost->source_index]->dec;
2255 const AVCodec *out_codec = ost->enc;
2256 const char *decoder_name = "?";
2257 const char *in_codec_name = "?";
2258 const char *encoder_name = "?";
2259 const char *out_codec_name = "?";
2260 const AVCodecDescriptor *desc;
2263 decoder_name = in_codec->name;
2264 desc = avcodec_descriptor_get(in_codec->id);
2266 in_codec_name = desc->name;
2267 if (!strcmp(decoder_name, in_codec_name))
2268 decoder_name = "native";
2272 encoder_name = out_codec->name;
2273 desc = avcodec_descriptor_get(out_codec->id);
2275 out_codec_name = desc->name;
2276 if (!strcmp(encoder_name, out_codec_name))
2277 encoder_name = "native";
2280 av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))",
2281 in_codec_name, decoder_name,
2282 out_codec_name, encoder_name);
2284 av_log(NULL, AV_LOG_INFO, "\n");
2288 av_log(NULL, AV_LOG_ERROR, "%s\n", error);
2295 /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */
2296 static int need_output(void)
2300 for (i = 0; i < nb_output_streams; i++) {
2301 OutputStream *ost = output_streams[i];
2302 OutputFile *of = output_files[ost->file_index];
2303 AVFormatContext *os = output_files[ost->file_index]->ctx;
2305 if (ost->finished ||
2306 (os->pb && avio_tell(os->pb) >= of->limit_filesize))
2308 if (ost->frame_number >= ost->max_frames) {
2310 for (j = 0; j < of->ctx->nb_streams; j++)
2311 output_streams[of->ost_index + j]->finished = 1;
2321 static InputFile *select_input_file(void)
2323 InputFile *ifile = NULL;
2324 int64_t ipts_min = INT64_MAX;
2327 for (i = 0; i < nb_input_streams; i++) {
2328 InputStream *ist = input_streams[i];
2329 int64_t ipts = ist->last_dts;
2331 if (ist->discard || input_files[ist->file_index]->eagain)
2333 if (!input_files[ist->file_index]->eof_reached) {
2334 if (ipts < ipts_min) {
2336 ifile = input_files[ist->file_index];
2345 static void *input_thread(void *arg)
2350 while (!transcoding_finished && ret >= 0) {
2352 ret = av_read_frame(f->ctx, &pkt);
2354 if (ret == AVERROR(EAGAIN)) {
2361 pthread_mutex_lock(&f->fifo_lock);
2362 while (!av_fifo_space(f->fifo))
2363 pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
2365 av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
2367 pthread_mutex_unlock(&f->fifo_lock);
2374 static void free_input_threads(void)
2378 if (nb_input_files == 1)
2381 transcoding_finished = 1;
2383 for (i = 0; i < nb_input_files; i++) {
2384 InputFile *f = input_files[i];
2387 if (!f->fifo || f->joined)
2390 pthread_mutex_lock(&f->fifo_lock);
2391 while (av_fifo_size(f->fifo)) {
2392 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2393 av_packet_unref(&pkt);
2395 pthread_cond_signal(&f->fifo_cond);
2396 pthread_mutex_unlock(&f->fifo_lock);
2398 pthread_join(f->thread, NULL);
2401 while (av_fifo_size(f->fifo)) {
2402 av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL);
2403 av_packet_unref(&pkt);
2405 av_fifo_free(f->fifo);
2409 static int init_input_threads(void)
2413 if (nb_input_files == 1)
2416 for (i = 0; i < nb_input_files; i++) {
2417 InputFile *f = input_files[i];
2419 if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
2420 return AVERROR(ENOMEM);
2422 pthread_mutex_init(&f->fifo_lock, NULL);
2423 pthread_cond_init (&f->fifo_cond, NULL);
2425 if ((ret = pthread_create(&f->thread, NULL, input_thread, f)))
2426 return AVERROR(ret);
2431 static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
2435 pthread_mutex_lock(&f->fifo_lock);
2437 if (av_fifo_size(f->fifo)) {
2438 av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
2439 pthread_cond_signal(&f->fifo_cond);
2444 ret = AVERROR(EAGAIN);
2447 pthread_mutex_unlock(&f->fifo_lock);
2453 static int get_input_packet(InputFile *f, AVPacket *pkt)
2457 for (i = 0; i < f->nb_streams; i++) {
2458 InputStream *ist = input_streams[f->ist_index + i];
2459 int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
2460 int64_t now = av_gettime_relative() - ist->start;
2462 return AVERROR(EAGAIN);
2467 if (nb_input_files > 1)
2468 return get_input_packet_mt(f, pkt);
2470 return av_read_frame(f->ctx, pkt);
2473 static int got_eagain(void)
2476 for (i = 0; i < nb_input_files; i++)
2477 if (input_files[i]->eagain)
2482 static void reset_eagain(void)
2485 for (i = 0; i < nb_input_files; i++)
2486 input_files[i]->eagain = 0;
2489 // set duration to max(tmp, duration) in a proper time base and return duration's time_base
2490 static AVRational duration_max(int64_t tmp, int64_t *duration, AVRational tmp_time_base,
2491 AVRational time_base)
2497 return tmp_time_base;
2500 ret = av_compare_ts(*duration, time_base, tmp, tmp_time_base);
2503 return tmp_time_base;
2509 static int seek_to_start(InputFile *ifile, AVFormatContext *is)
2512 AVCodecContext *avctx;
2513 int i, ret, has_audio = 0;
2514 int64_t duration = 0;
2516 ret = av_seek_frame(is, -1, is->start_time, 0);
2520 for (i = 0; i < ifile->nb_streams; i++) {
2521 ist = input_streams[ifile->ist_index + i];
2522 avctx = ist->dec_ctx;
2525 if (ist->decoding_needed) {
2526 process_input_packet(ist, NULL, 1);
2527 avcodec_flush_buffers(avctx);
2530 /* duration is the length of the last frame in a stream
2531 * when audio stream is present we don't care about
2532 * last video frame length because it's not defined exactly */
2533 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples)
2537 for (i = 0; i < ifile->nb_streams; i++) {
2538 ist = input_streams[ifile->ist_index + i];
2539 avctx = ist->dec_ctx;
2542 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && ist->nb_samples) {
2543 AVRational sample_rate = {1, avctx->sample_rate};
2545 duration = av_rescale_q(ist->nb_samples, sample_rate, ist->st->time_base);
2549 if (ist->framerate.num) {
2550 duration = av_rescale_q(1, ist->framerate, ist->st->time_base);
2551 } else if (ist->st->avg_frame_rate.num) {
2552 duration = av_rescale_q(1, ist->st->avg_frame_rate, ist->st->time_base);
2553 } else duration = 1;
2555 if (!ifile->duration)
2556 ifile->time_base = ist->st->time_base;
2557 /* the total duration of the stream, max_pts - min_pts is
2558 * the duration of the stream without the last frame */
2559 duration += ist->max_pts - ist->min_pts;
2560 ifile->time_base = duration_max(duration, &ifile->duration, ist->st->time_base,
2564 if (ifile->loop > 0)
2571 * Read one packet from an input file and send it for
2572 * - decoding -> lavfi (audio/video)
2573 * - decoding -> encoding -> muxing (subtitles)
2574 * - muxing (streamcopy)
2577 * - 0 -- one packet was read and processed
2578 * - AVERROR(EAGAIN) -- no packets were available for selected file,
2579 * this function should be called again
2580 * - AVERROR_EOF -- this function should not be called again
2582 static int process_input(void)
2585 AVFormatContext *is;
2591 /* select the stream that we must read now */
2592 ifile = select_input_file();
2593 /* if none, if is finished */
2598 return AVERROR(EAGAIN);
2600 av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
2605 ret = get_input_packet(ifile, &pkt);
2607 if (ret == AVERROR(EAGAIN)) {
2611 if (ret < 0 && ifile->loop) {
2612 if ((ret = seek_to_start(ifile, is)) < 0)
2614 ret = get_input_packet(ifile, &pkt);
2617 if (ret != AVERROR_EOF) {
2618 print_error(is->filename, ret);
2622 ifile->eof_reached = 1;
2624 for (i = 0; i < ifile->nb_streams; i++) {
2625 ist = input_streams[ifile->ist_index + i];
2626 if (ist->decoding_needed)
2627 process_input_packet(ist, NULL, 0);
2629 /* mark all outputs that don't go through lavfi as finished */
2630 for (j = 0; j < nb_output_streams; j++) {
2631 OutputStream *ost = output_streams[j];
2633 if (ost->source_index == ifile->ist_index + i &&
2634 (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
2635 finish_output_stream(ost);
2639 return AVERROR(EAGAIN);
2645 av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
2646 is->streams[pkt.stream_index]);
2648 /* the following test is needed in case new streams appear
2649 dynamically in stream : we ignore them */
2650 if (pkt.stream_index >= ifile->nb_streams)
2651 goto discard_packet;
2653 ist = input_streams[ifile->ist_index + pkt.stream_index];
2655 ist->data_size += pkt.size;
2659 goto discard_packet;
2661 /* add the stream-global side data to the first packet */
2662 if (ist->nb_packets == 1)
2663 for (i = 0; i < ist->st->nb_side_data; i++) {
2664 AVPacketSideData *src_sd = &ist->st->side_data[i];
2667 if (av_packet_get_side_data(&pkt, src_sd->type, NULL))
2669 if (ist->autorotate && src_sd->type == AV_PKT_DATA_DISPLAYMATRIX)
2672 dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size);
2676 memcpy(dst_data, src_sd->data, src_sd->size);
2679 if (pkt.dts != AV_NOPTS_VALUE)
2680 pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2681 if (pkt.pts != AV_NOPTS_VALUE)
2682 pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
2684 if (pkt.pts != AV_NOPTS_VALUE)
2685 pkt.pts *= ist->ts_scale;
2686 if (pkt.dts != AV_NOPTS_VALUE)
2687 pkt.dts *= ist->ts_scale;
2689 if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO ||
2690 ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) &&
2691 pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
2692 (is->iformat->flags & AVFMT_TS_DISCONT)) {
2693 int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
2694 int64_t delta = pkt_dts - ist->next_dts;
2696 if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
2697 ifile->ts_offset -= delta;
2698 av_log(NULL, AV_LOG_DEBUG,
2699 "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
2700 delta, ifile->ts_offset);
2701 pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2702 if (pkt.pts != AV_NOPTS_VALUE)
2703 pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
2706 duration = av_rescale_q(ifile->duration, ifile->time_base, ist->st->time_base);
2707 if (pkt.pts != AV_NOPTS_VALUE) {
2708 pkt.pts += duration;
2709 ist->max_pts = FFMAX(pkt.pts, ist->max_pts);
2710 ist->min_pts = FFMIN(pkt.pts, ist->min_pts);
2713 if (pkt.dts != AV_NOPTS_VALUE)
2714 pkt.dts += duration;
2716 process_input_packet(ist, &pkt, 0);
2719 av_packet_unref(&pkt);
2725 * The following code is the main loop of the file converter
2727 static int transcode(void)
2729 int ret, i, need_input = 1;
2730 AVFormatContext *os;
2733 int64_t timer_start;
2735 ret = transcode_init();
2739 av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
2742 timer_start = av_gettime_relative();
2745 if ((ret = init_input_threads()) < 0)
2749 while (!received_sigterm) {
2750 /* check if there's any stream where output is still needed */
2751 if (!need_output()) {
2752 av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
2756 /* read and process one input packet if needed */
2758 ret = process_input();
2759 if (ret == AVERROR_EOF)
2763 ret = poll_filters();
2764 if (ret < 0 && ret != AVERROR_EOF) {
2766 av_strerror(ret, errbuf, sizeof(errbuf));
2768 av_log(NULL, AV_LOG_ERROR, "Error while filtering: %s\n", errbuf);
2772 /* dump report by using the output first video and audio streams */
2773 print_report(0, timer_start);
2776 free_input_threads();
2779 /* at the end of stream, we must flush the decoder buffers */
2780 for (i = 0; i < nb_input_streams; i++) {
2781 ist = input_streams[i];
2782 if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) {
2783 process_input_packet(ist, NULL, 0);
2791 /* write the trailer if needed and close file */
2792 for (i = 0; i < nb_output_files; i++) {
2793 os = output_files[i]->ctx;
2794 if (!output_files[i]->header_written) {
2795 av_log(NULL, AV_LOG_ERROR,
2796 "Nothing was written into output file %d (%s), because "
2797 "at least one of its streams received no packets.\n",
2801 av_write_trailer(os);
2804 /* dump report by using the first video and audio streams */
2805 print_report(1, timer_start);
2807 /* close each encoder */
2808 for (i = 0; i < nb_output_streams; i++) {
2809 ost = output_streams[i];
2810 if (ost->encoding_needed) {
2811 av_freep(&ost->enc_ctx->stats_in);
2815 /* close each decoder */
2816 for (i = 0; i < nb_input_streams; i++) {
2817 ist = input_streams[i];
2818 if (ist->decoding_needed) {
2819 avcodec_close(ist->dec_ctx);
2820 if (ist->hwaccel_uninit)
2821 ist->hwaccel_uninit(ist->dec_ctx);
2825 av_buffer_unref(&hw_device_ctx);
2826 hw_device_free_all();
2833 free_input_threads();
2836 if (output_streams) {
2837 for (i = 0; i < nb_output_streams; i++) {
2838 ost = output_streams[i];
2841 fclose(ost->logfile);
2842 ost->logfile = NULL;
2844 av_free(ost->forced_kf_pts);
2845 av_dict_free(&ost->encoder_opts);
2846 av_dict_free(&ost->resample_opts);
2853 static int64_t getutime(void)
2856 struct rusage rusage;
2858 getrusage(RUSAGE_SELF, &rusage);
2859 return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
2860 #elif HAVE_GETPROCESSTIMES
2862 FILETIME c, e, k, u;
2863 proc = GetCurrentProcess();
2864 GetProcessTimes(proc, &c, &e, &k, &u);
2865 return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
2867 return av_gettime_relative();
2871 static int64_t getmaxrss(void)
2873 #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
2874 struct rusage rusage;
2875 getrusage(RUSAGE_SELF, &rusage);
2876 return (int64_t)rusage.ru_maxrss * 1024;
2877 #elif HAVE_GETPROCESSMEMORYINFO
2879 PROCESS_MEMORY_COUNTERS memcounters;
2880 proc = GetCurrentProcess();
2881 memcounters.cb = sizeof(memcounters);
2882 GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
2883 return memcounters.PeakPagefileUsage;
2889 int main(int argc, char **argv)
2894 register_exit(avconv_cleanup);
2896 av_log_set_flags(AV_LOG_SKIP_REPEATED);
2897 parse_loglevel(argc, argv, options);
2899 avcodec_register_all();
2901 avdevice_register_all();
2903 avfilter_register_all();
2905 avformat_network_init();
2909 /* parse options and open all input/output files */
2910 ret = avconv_parse_options(argc, argv);
2914 if (nb_output_files <= 0 && nb_input_files == 0) {
2916 av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
2920 /* file converter / grab */
2921 if (nb_output_files <= 0) {
2922 fprintf(stderr, "At least one output file must be specified\n");
2926 for (i = 0; i < nb_output_files; i++) {
2927 if (strcmp(output_files[i]->ctx->oformat->name, "rtp"))
2932 if (transcode() < 0)
2934 ti = getutime() - ti;
2936 int maxrss = getmaxrss() / 1024;
2937 printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);