2006-09-10 16:02:42 +02:00
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/*
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2011-05-30 09:14:48 +02:00
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* Copyright (c) 2001 Fabrice Bellard
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2006-09-10 16:02:42 +02:00
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*
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2011-07-09 15:38:23 +02:00
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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2006-10-07 17:30:46 +02:00
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*
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2011-07-09 15:38:23 +02:00
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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2006-09-10 16:02:42 +02:00
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*
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2011-07-09 15:38:23 +02:00
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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2006-09-10 16:02:42 +02:00
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*/
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2003-03-06 12:32:04 +01:00
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/**
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2010-04-20 16:45:34 +02:00
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* @file
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2011-06-30 21:06:25 +02:00
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* libavcodec API use example.
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2001-07-22 16:18:56 +02:00
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*
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2011-07-09 15:40:01 +02:00
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* Note that libavcodec only handles codecs (mpeg, mpeg4, etc...),
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2011-10-11 22:10:26 +02:00
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* not file formats (avi, vob, mp4, mov, mkv, mxf, flv, mpegts, mpegps, etc...). See library 'libavformat' for the
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2005-12-17 19:14:38 +01:00
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* format handling
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2001-07-22 16:18:56 +02:00
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*/
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2003-03-06 12:32:04 +01:00
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2011-10-17 20:23:24 +02:00
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#include "libavutil/imgutils.h"
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2011-10-17 20:22:45 +02:00
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#include "libavutil/opt.h"
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2009-10-06 08:18:57 +02:00
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#include "libavcodec/avcodec.h"
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2008-10-02 18:29:15 +02:00
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#include "libavutil/mathematics.h"
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2011-11-11 21:44:41 +01:00
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#include "libavutil/samplefmt.h"
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2001-07-22 16:18:56 +02:00
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#define INBUF_SIZE 4096
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2010-05-25 21:13:28 +02:00
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#define AUDIO_INBUF_SIZE 20480
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#define AUDIO_REFILL_THRESH 4096
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2001-07-22 16:18:56 +02:00
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/*
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2005-12-17 19:14:38 +01:00
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* Audio encoding example
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2001-07-22 16:18:56 +02:00
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*/
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2009-03-31 11:32:59 +02:00
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static void audio_encode_example(const char *filename)
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2001-07-22 16:18:56 +02:00
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{
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AVCodec *codec;
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2002-09-19 20:24:52 +02:00
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AVCodecContext *c= NULL;
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2001-07-22 16:18:56 +02:00
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int frame_size, i, j, out_size, outbuf_size;
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FILE *f;
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short *samples;
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float t, tincr;
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2003-02-11 17:35:48 +01:00
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uint8_t *outbuf;
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2001-07-22 16:18:56 +02:00
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printf("Audio encoding\n");
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/* find the MP2 encoder */
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codec = avcodec_find_encoder(CODEC_ID_MP2);
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if (!codec) {
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fprintf(stderr, "codec not found\n");
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exit(1);
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}
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2011-06-18 13:40:48 +02:00
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c = avcodec_alloc_context3(codec);
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2005-12-17 19:14:38 +01:00
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2001-07-22 16:18:56 +02:00
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/* put sample parameters */
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c->bit_rate = 64000;
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c->sample_rate = 44100;
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c->channels = 2;
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2011-07-08 10:05:06 +02:00
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c->sample_fmt = AV_SAMPLE_FMT_S16;
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2001-07-22 16:18:56 +02:00
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/* open it */
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2012-02-19 10:34:40 +01:00
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if (avcodec_open2(c, codec, NULL) < 0) {
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2001-07-22 16:18:56 +02:00
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fprintf(stderr, "could not open codec\n");
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exit(1);
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}
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2005-12-17 19:14:38 +01:00
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2001-07-22 16:18:56 +02:00
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/* the codec gives us the frame size, in samples */
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frame_size = c->frame_size;
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samples = malloc(frame_size * 2 * c->channels);
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outbuf_size = 10000;
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outbuf = malloc(outbuf_size);
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2004-04-09 17:04:51 +02:00
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f = fopen(filename, "wb");
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2001-07-22 16:18:56 +02:00
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if (!f) {
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fprintf(stderr, "could not open %s\n", filename);
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exit(1);
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}
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2005-12-17 19:14:38 +01:00
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2001-07-22 16:18:56 +02:00
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/* encode a single tone sound */
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t = 0;
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2008-10-02 18:29:15 +02:00
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tincr = 2 * M_PI * 440.0 / c->sample_rate;
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2001-07-22 16:18:56 +02:00
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for(i=0;i<200;i++) {
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for(j=0;j<frame_size;j++) {
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samples[2*j] = (int)(sin(t) * 10000);
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samples[2*j+1] = samples[2*j];
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t += tincr;
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}
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/* encode the samples */
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out_size = avcodec_encode_audio(c, outbuf, outbuf_size, samples);
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fwrite(outbuf, 1, out_size, f);
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}
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fclose(f);
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free(outbuf);
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free(samples);
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avcodec_close(c);
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2005-02-22 12:37:03 +01:00
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av_free(c);
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2001-07-22 16:18:56 +02:00
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}
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/*
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2005-12-17 19:14:38 +01:00
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* Audio decoding.
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2001-07-22 16:18:56 +02:00
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*/
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2009-03-31 11:32:59 +02:00
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static void audio_decode_example(const char *outfilename, const char *filename)
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2001-07-22 16:18:56 +02:00
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{
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AVCodec *codec;
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2002-09-19 20:24:52 +02:00
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AVCodecContext *c= NULL;
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2011-11-11 21:44:41 +01:00
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int len;
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2001-07-22 16:18:56 +02:00
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FILE *f, *outfile;
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2010-05-25 21:13:28 +02:00
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uint8_t inbuf[AUDIO_INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
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2009-04-10 13:07:52 +02:00
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AVPacket avpkt;
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2011-11-11 21:44:41 +01:00
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AVFrame *decoded_frame = NULL;
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2009-04-10 13:07:52 +02:00
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av_init_packet(&avpkt);
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2001-07-22 16:18:56 +02:00
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printf("Audio decoding\n");
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2005-12-17 19:14:38 +01:00
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2001-07-22 16:18:56 +02:00
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/* find the mpeg audio decoder */
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codec = avcodec_find_decoder(CODEC_ID_MP2);
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if (!codec) {
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fprintf(stderr, "codec not found\n");
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exit(1);
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}
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2011-06-18 13:40:48 +02:00
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c = avcodec_alloc_context3(codec);
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2001-07-22 16:18:56 +02:00
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/* open it */
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2012-02-19 10:34:40 +01:00
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if (avcodec_open2(c, codec, NULL) < 0) {
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2001-07-22 16:18:56 +02:00
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fprintf(stderr, "could not open codec\n");
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exit(1);
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}
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2005-12-17 19:14:38 +01:00
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2004-04-09 17:04:51 +02:00
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f = fopen(filename, "rb");
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2001-07-22 16:18:56 +02:00
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if (!f) {
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fprintf(stderr, "could not open %s\n", filename);
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exit(1);
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}
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2004-04-09 17:04:51 +02:00
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outfile = fopen(outfilename, "wb");
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2001-07-22 16:18:56 +02:00
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if (!outfile) {
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2005-02-22 12:37:03 +01:00
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av_free(c);
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2001-07-22 16:18:56 +02:00
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exit(1);
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}
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2005-12-17 19:14:38 +01:00
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2001-07-22 16:18:56 +02:00
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/* decode until eof */
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2009-04-10 13:07:52 +02:00
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avpkt.data = inbuf;
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2010-05-25 21:16:15 +02:00
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avpkt.size = fread(inbuf, 1, AUDIO_INBUF_SIZE, f);
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while (avpkt.size > 0) {
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2011-11-11 21:44:41 +01:00
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int got_frame = 0;
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if (!decoded_frame) {
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if (!(decoded_frame = avcodec_alloc_frame())) {
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fprintf(stderr, "out of memory\n");
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exit(1);
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}
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} else
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avcodec_get_frame_defaults(decoded_frame);
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len = avcodec_decode_audio4(c, decoded_frame, &got_frame, &avpkt);
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2010-05-25 21:16:15 +02:00
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if (len < 0) {
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fprintf(stderr, "Error while decoding\n");
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exit(1);
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2001-07-22 16:18:56 +02:00
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}
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2011-11-11 21:44:41 +01:00
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if (got_frame) {
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2010-05-25 21:16:15 +02:00
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/* if a frame has been decoded, output it */
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2011-11-11 21:44:41 +01:00
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int data_size = av_samples_get_buffer_size(NULL, c->channels,
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decoded_frame->nb_samples,
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c->sample_fmt, 1);
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fwrite(decoded_frame->data[0], 1, data_size, outfile);
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2010-05-25 21:16:15 +02:00
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}
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avpkt.size -= len;
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avpkt.data += len;
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2011-12-13 19:47:57 +01:00
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avpkt.dts =
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avpkt.pts = AV_NOPTS_VALUE;
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2010-05-25 21:16:15 +02:00
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if (avpkt.size < AUDIO_REFILL_THRESH) {
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/* Refill the input buffer, to avoid trying to decode
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* incomplete frames. Instead of this, one could also use
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* a parser, or use a proper container format through
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* libavformat. */
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memmove(inbuf, avpkt.data, avpkt.size);
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avpkt.data = inbuf;
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len = fread(avpkt.data + avpkt.size, 1,
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AUDIO_INBUF_SIZE - avpkt.size, f);
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if (len > 0)
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avpkt.size += len;
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}
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}
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2001-07-22 16:18:56 +02:00
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fclose(outfile);
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fclose(f);
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avcodec_close(c);
|
2005-02-22 12:37:03 +01:00
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av_free(c);
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2011-11-11 21:44:41 +01:00
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av_free(decoded_frame);
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2001-07-22 16:18:56 +02:00
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}
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/*
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2005-12-17 19:14:38 +01:00
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* Video encoding example
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2001-07-22 16:18:56 +02:00
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*/
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2011-10-17 20:36:03 +02:00
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static void video_encode_example(const char *filename, int codec_id)
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2001-07-22 16:18:56 +02:00
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{
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AVCodec *codec;
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2002-09-19 20:24:52 +02:00
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AVCodecContext *c= NULL;
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2012-04-12 00:04:21 +02:00
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int i, out_size, x, y, outbuf_size;
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2001-07-22 16:18:56 +02:00
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FILE *f;
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2002-12-09 13:03:43 +01:00
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AVFrame *picture;
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2011-07-08 09:52:07 +02:00
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uint8_t *outbuf;
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2001-07-22 16:18:56 +02:00
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printf("Video encoding\n");
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/* find the mpeg1 video encoder */
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2011-10-17 20:36:03 +02:00
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codec = avcodec_find_encoder(codec_id);
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2001-07-22 16:18:56 +02:00
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if (!codec) {
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fprintf(stderr, "codec not found\n");
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exit(1);
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}
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2011-06-18 13:40:48 +02:00
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c = avcodec_alloc_context3(codec);
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2002-12-09 13:03:43 +01:00
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picture= avcodec_alloc_frame();
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2005-12-17 19:14:38 +01:00
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2001-07-22 16:18:56 +02:00
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/* put sample parameters */
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c->bit_rate = 400000;
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/* resolution must be a multiple of two */
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2005-12-17 19:14:38 +01:00
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c->width = 352;
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2001-07-22 16:18:56 +02:00
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c->height = 288;
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/* frames per second */
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2005-04-30 23:43:59 +02:00
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c->time_base= (AVRational){1,25};
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2001-07-22 16:18:56 +02:00
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c->gop_size = 10; /* emit one intra frame every ten frames */
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2003-07-23 12:41:07 +02:00
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c->max_b_frames=1;
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2005-06-07 22:57:15 +02:00
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c->pix_fmt = PIX_FMT_YUV420P;
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2001-07-22 16:18:56 +02:00
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2011-10-17 20:36:03 +02:00
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if(codec_id == CODEC_ID_H264)
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av_opt_set(c->priv_data, "preset", "slow", 0);
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2011-10-17 20:22:45 +02:00
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2001-07-22 16:18:56 +02:00
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/* open it */
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2012-02-19 10:34:40 +01:00
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if (avcodec_open2(c, codec, NULL) < 0) {
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2001-07-22 16:18:56 +02:00
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fprintf(stderr, "could not open codec\n");
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exit(1);
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}
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2005-12-17 19:14:38 +01:00
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2004-04-09 17:04:51 +02:00
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f = fopen(filename, "wb");
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2001-07-22 16:18:56 +02:00
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if (!f) {
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fprintf(stderr, "could not open %s\n", filename);
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exit(1);
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}
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2005-12-17 19:14:38 +01:00
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2001-07-22 16:18:56 +02:00
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/* alloc image and output buffer */
|
2012-03-22 04:47:03 +01:00
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outbuf_size = 100000 + 12*c->width*c->height;
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2001-07-22 16:18:56 +02:00
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outbuf = malloc(outbuf_size);
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2005-12-17 19:14:38 +01:00
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2011-07-08 09:52:07 +02:00
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/* the image can be allocated by any means and av_image_alloc() is
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* just the most convenient way if av_malloc() is to be used */
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av_image_alloc(picture->data, picture->linesize,
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c->width, c->height, c->pix_fmt, 1);
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2001-07-22 16:18:56 +02:00
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/* encode 1 second of video */
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for(i=0;i<25;i++) {
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fflush(stdout);
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/* prepare a dummy image */
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/* Y */
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for(y=0;y<c->height;y++) {
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for(x=0;x<c->width;x++) {
|
2002-12-06 18:39:32 +01:00
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picture->data[0][y * picture->linesize[0] + x] = x + y + i * 3;
|
2001-07-22 16:18:56 +02:00
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}
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}
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/* Cb and Cr */
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for(y=0;y<c->height/2;y++) {
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for(x=0;x<c->width/2;x++) {
|
2002-12-06 18:39:32 +01:00
|
|
|
picture->data[1][y * picture->linesize[1] + x] = 128 + y + i * 2;
|
|
|
|
picture->data[2][y * picture->linesize[2] + x] = 64 + x + i * 5;
|
2001-07-22 16:18:56 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* encode the image */
|
2002-12-06 18:39:32 +01:00
|
|
|
out_size = avcodec_encode_video(c, outbuf, outbuf_size, picture);
|
2003-07-23 12:41:07 +02:00
|
|
|
printf("encoding frame %3d (size=%5d)\n", i, out_size);
|
|
|
|
fwrite(outbuf, 1, out_size, f);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* get the delayed frames */
|
|
|
|
for(; out_size; i++) {
|
|
|
|
fflush(stdout);
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2003-07-23 12:41:07 +02:00
|
|
|
out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
|
|
|
|
printf("write frame %3d (size=%5d)\n", i, out_size);
|
2001-07-22 16:18:56 +02:00
|
|
|
fwrite(outbuf, 1, out_size, f);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* add sequence end code to have a real mpeg file */
|
|
|
|
outbuf[0] = 0x00;
|
|
|
|
outbuf[1] = 0x00;
|
|
|
|
outbuf[2] = 0x01;
|
|
|
|
outbuf[3] = 0xb7;
|
|
|
|
fwrite(outbuf, 1, 4, f);
|
|
|
|
fclose(f);
|
|
|
|
free(outbuf);
|
|
|
|
|
|
|
|
avcodec_close(c);
|
2005-02-22 12:37:03 +01:00
|
|
|
av_free(c);
|
2011-07-08 09:52:07 +02:00
|
|
|
av_free(picture->data[0]);
|
2005-02-22 12:37:03 +01:00
|
|
|
av_free(picture);
|
2001-07-22 16:18:56 +02:00
|
|
|
printf("\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2005-12-17 19:14:38 +01:00
|
|
|
* Video decoding example
|
2001-07-22 16:18:56 +02:00
|
|
|
*/
|
|
|
|
|
2009-03-31 11:32:59 +02:00
|
|
|
static void pgm_save(unsigned char *buf, int wrap, int xsize, int ysize,
|
|
|
|
char *filename)
|
2001-07-22 16:18:56 +02:00
|
|
|
{
|
|
|
|
FILE *f;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
f=fopen(filename,"w");
|
|
|
|
fprintf(f,"P5\n%d %d\n%d\n",xsize,ysize,255);
|
|
|
|
for(i=0;i<ysize;i++)
|
|
|
|
fwrite(buf + i * wrap,1,xsize,f);
|
|
|
|
fclose(f);
|
|
|
|
}
|
|
|
|
|
2009-03-31 11:32:59 +02:00
|
|
|
static void video_decode_example(const char *outfilename, const char *filename)
|
2001-07-22 16:18:56 +02:00
|
|
|
{
|
|
|
|
AVCodec *codec;
|
2002-09-19 20:24:52 +02:00
|
|
|
AVCodecContext *c= NULL;
|
2009-04-10 13:07:52 +02:00
|
|
|
int frame, got_picture, len;
|
2001-07-22 16:18:56 +02:00
|
|
|
FILE *f;
|
2002-12-09 13:03:43 +01:00
|
|
|
AVFrame *picture;
|
2009-04-10 13:07:52 +02:00
|
|
|
uint8_t inbuf[INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
|
2001-07-22 16:18:56 +02:00
|
|
|
char buf[1024];
|
2009-04-10 13:07:52 +02:00
|
|
|
AVPacket avpkt;
|
|
|
|
|
|
|
|
av_init_packet(&avpkt);
|
2001-07-22 16:18:56 +02:00
|
|
|
|
2003-08-01 13:01:05 +02:00
|
|
|
/* set end of buffer to 0 (this ensures that no overreading happens for damaged mpeg streams) */
|
|
|
|
memset(inbuf + INBUF_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
|
|
|
|
|
2001-07-22 16:18:56 +02:00
|
|
|
printf("Video decoding\n");
|
|
|
|
|
|
|
|
/* find the mpeg1 video decoder */
|
|
|
|
codec = avcodec_find_decoder(CODEC_ID_MPEG1VIDEO);
|
|
|
|
if (!codec) {
|
|
|
|
fprintf(stderr, "codec not found\n");
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
|
2011-06-18 13:40:48 +02:00
|
|
|
c = avcodec_alloc_context3(codec);
|
2002-12-09 13:03:43 +01:00
|
|
|
picture= avcodec_alloc_frame();
|
2001-07-22 16:18:56 +02:00
|
|
|
|
2002-11-26 17:16:04 +01:00
|
|
|
if(codec->capabilities&CODEC_CAP_TRUNCATED)
|
2007-06-12 11:29:25 +02:00
|
|
|
c->flags|= CODEC_FLAG_TRUNCATED; /* we do not send complete frames */
|
2002-11-26 17:16:04 +01:00
|
|
|
|
2007-06-12 11:29:25 +02:00
|
|
|
/* For some codecs, such as msmpeg4 and mpeg4, width and height
|
|
|
|
MUST be initialized there because this information is not
|
|
|
|
available in the bitstream. */
|
2001-07-22 16:18:56 +02:00
|
|
|
|
|
|
|
/* open it */
|
2012-02-19 10:34:40 +01:00
|
|
|
if (avcodec_open2(c, codec, NULL) < 0) {
|
2001-07-22 16:18:56 +02:00
|
|
|
fprintf(stderr, "could not open codec\n");
|
|
|
|
exit(1);
|
|
|
|
}
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2001-07-22 16:18:56 +02:00
|
|
|
/* the codec gives us the frame size, in samples */
|
|
|
|
|
2004-04-09 17:04:51 +02:00
|
|
|
f = fopen(filename, "rb");
|
2001-07-22 16:18:56 +02:00
|
|
|
if (!f) {
|
|
|
|
fprintf(stderr, "could not open %s\n", filename);
|
|
|
|
exit(1);
|
|
|
|
}
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2001-07-22 16:18:56 +02:00
|
|
|
frame = 0;
|
|
|
|
for(;;) {
|
2009-04-10 13:07:52 +02:00
|
|
|
avpkt.size = fread(inbuf, 1, INBUF_SIZE, f);
|
|
|
|
if (avpkt.size == 0)
|
2001-07-22 16:18:56 +02:00
|
|
|
break;
|
|
|
|
|
|
|
|
/* NOTE1: some codecs are stream based (mpegvideo, mpegaudio)
|
|
|
|
and this is the only method to use them because you cannot
|
2005-12-17 19:14:38 +01:00
|
|
|
know the compressed data size before analysing it.
|
2001-07-22 16:18:56 +02:00
|
|
|
|
2001-08-15 15:12:23 +02:00
|
|
|
BUT some other codecs (msmpeg4, mpeg4) are inherently frame
|
|
|
|
based, so you must call them with all the data for one
|
|
|
|
frame exactly. You must also initialize 'width' and
|
2001-07-22 16:18:56 +02:00
|
|
|
'height' before initializing them. */
|
|
|
|
|
|
|
|
/* NOTE2: some codecs allow the raw parameters (frame size,
|
|
|
|
sample rate) to be changed at any frame. We handle this, so
|
|
|
|
you should also take care of it */
|
|
|
|
|
|
|
|
/* here, we use a stream based decoder (mpeg1video), so we
|
|
|
|
feed decoder and see if it could decode a frame */
|
2009-04-10 13:07:52 +02:00
|
|
|
avpkt.data = inbuf;
|
|
|
|
while (avpkt.size > 0) {
|
|
|
|
len = avcodec_decode_video2(c, picture, &got_picture, &avpkt);
|
2001-07-22 16:18:56 +02:00
|
|
|
if (len < 0) {
|
|
|
|
fprintf(stderr, "Error while decoding frame %d\n", frame);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
if (got_picture) {
|
2003-07-23 12:41:07 +02:00
|
|
|
printf("saving frame %3d\n", frame);
|
2001-07-22 16:18:56 +02:00
|
|
|
fflush(stdout);
|
|
|
|
|
|
|
|
/* the picture is allocated by the decoder. no need to
|
|
|
|
free it */
|
|
|
|
snprintf(buf, sizeof(buf), outfilename, frame);
|
2005-12-17 19:14:38 +01:00
|
|
|
pgm_save(picture->data[0], picture->linesize[0],
|
2001-07-22 16:18:56 +02:00
|
|
|
c->width, c->height, buf);
|
|
|
|
frame++;
|
|
|
|
}
|
2009-04-10 13:07:52 +02:00
|
|
|
avpkt.size -= len;
|
|
|
|
avpkt.data += len;
|
2001-07-22 16:18:56 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* some codecs, such as MPEG, transmit the I and P frame with a
|
|
|
|
latency of one frame. You must do the following to have a
|
|
|
|
chance to get the last frame of the video */
|
2009-04-10 13:07:52 +02:00
|
|
|
avpkt.data = NULL;
|
|
|
|
avpkt.size = 0;
|
|
|
|
len = avcodec_decode_video2(c, picture, &got_picture, &avpkt);
|
2001-07-22 16:18:56 +02:00
|
|
|
if (got_picture) {
|
2003-07-23 12:41:07 +02:00
|
|
|
printf("saving last frame %3d\n", frame);
|
2001-07-22 16:18:56 +02:00
|
|
|
fflush(stdout);
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2001-07-22 16:18:56 +02:00
|
|
|
/* the picture is allocated by the decoder. no need to
|
|
|
|
free it */
|
|
|
|
snprintf(buf, sizeof(buf), outfilename, frame);
|
2005-12-17 19:14:38 +01:00
|
|
|
pgm_save(picture->data[0], picture->linesize[0],
|
2001-07-22 16:18:56 +02:00
|
|
|
c->width, c->height, buf);
|
|
|
|
frame++;
|
|
|
|
}
|
2005-12-17 19:14:38 +01:00
|
|
|
|
2001-07-22 16:18:56 +02:00
|
|
|
fclose(f);
|
|
|
|
|
|
|
|
avcodec_close(c);
|
2005-02-22 12:37:03 +01:00
|
|
|
av_free(c);
|
|
|
|
av_free(picture);
|
2001-07-22 16:18:56 +02:00
|
|
|
printf("\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char **argv)
|
|
|
|
{
|
|
|
|
const char *filename;
|
|
|
|
|
2007-06-13 10:28:00 +02:00
|
|
|
/* register all the codecs */
|
2001-07-22 16:18:56 +02:00
|
|
|
avcodec_register_all();
|
2003-02-10 10:40:23 +01:00
|
|
|
|
2001-07-22 16:18:56 +02:00
|
|
|
if (argc <= 1) {
|
|
|
|
audio_encode_example("/tmp/test.mp2");
|
|
|
|
audio_decode_example("/tmp/test.sw", "/tmp/test.mp2");
|
|
|
|
|
2011-10-17 20:36:03 +02:00
|
|
|
video_encode_example("/tmp/test.h264", CODEC_ID_H264);
|
|
|
|
video_encode_example("/tmp/test.mpg", CODEC_ID_MPEG1VIDEO);
|
|
|
|
filename = "/tmp/test.mpg";
|
2001-07-22 16:18:56 +02:00
|
|
|
} else {
|
|
|
|
filename = argv[1];
|
|
|
|
}
|
|
|
|
|
|
|
|
// audio_decode_example("/tmp/test.sw", filename);
|
|
|
|
video_decode_example("/tmp/test%d.pgm", filename);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|