1 /*
2 * Copyright (c) 2015 Ludmila Glinskih
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20 * THE SOFTWARE.
21 */
22
23 /**
24 * H264 codec test.
25 */
26
31
33 {
40 int number_of_written_bytes;
42 int got_frame = 0;
43 int byte_buffer_size;
44 int i = 0;
45 int result;
46 int end_of_stream = 0;
47
49 if (result < 0) {
51 return result;
52 }
53
55 if (result < 0) {
57 return result;
58 }
59
61 if (video_stream < 0) {
63 return -1;
64 }
65
67
69 if (!codec) {
71 return -1;
72 }
73
75 if (!ctx) {
78 }
79
81 if (result) {
83 return result;
84 }
85
87 if (result < 0) {
89 return result;
90 }
91
93 if (!fr) {
96 }
97
99 byte_buffer =
av_malloc(byte_buffer_size);
100 if (!byte_buffer) {
103 }
104
106 i = 0;
108 do {
109 if (!end_of_stream)
111 end_of_stream = 1;
112 if (end_of_stream) {
115 }
116 if (pkt.
stream_index == video_stream || end_of_stream) {
117 got_frame = 0;
121 if (result < 0) {
123 return result;
124 }
125 if (got_frame) {
128 ctx->pix_fmt, ctx->width, ctx->height, 1);
129 if (number_of_written_bytes < 0) {
131 return number_of_written_bytes;
132 }
133 printf("%d, %10"PRId64", %10"PRId64", %8"PRId64", %8d, 0x%08lx\n", video_stream,
136 }
139 }
140 i++;
141 } while (!end_of_stream || got_frame);
142
149 return 0;
150 }
151
152 int main(
int argc,
char **argv)
153 {
154 if (argc < 2)
155 {
157 return 1;
158 }
159
161
163 return 1;
164
165 return 0;
166 }
int64_t av_frame_get_pkt_duration(const AVFrame *frame)
void av_free_packet(AVPacket *pkt)
Free a packet.
This structure describes decoded (raw) audio or video data.
int av_image_copy_to_buffer(uint8_t *dst, int dst_size, const uint8_t *const src_data[4], const int src_linesize[4], enum AVPixelFormat pix_fmt, int width, int height, int align)
Copy image data from an image into a buffer.
int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options)
Open an input stream and read the header.
static AVFormatContext * fmt_ctx
static AVStream * video_stream
int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
Copy the settings of the source AVCodecContext into the destination AVCodecContext.
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf, unsigned int len)
Calculate the Adler32 checksum of a buffer.
AVStream ** streams
A list of all streams in the file.
int main(int argc, char **argv)
int av_find_best_stream(AVFormatContext *ic, enum AVMediaType type, int wanted_stream_nb, int related_stream, AVCodec **decoder_ret, int flags)
Find the "best" stream in the file.
int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
int av_image_get_buffer_size(enum AVPixelFormat pix_fmt, int width, int height, int align)
Return the size in bytes of the amount of data required to store an image with the given parameters...
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture, int *got_picture_ptr, const AVPacket *avpkt)
Decode the video frame of size avpkt->size from avpkt->data into picture.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Libavcodec external API header.
static int video_decode_example(const char *input_filename)
H264 codec test.
AVCodecContext * codec
Codec context associated with this stream.
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
static const char * input_filename
Public header for libavutil Adler32 hasher.
void avcodec_free_context(AVCodecContext **avctx)
Free the codec context and everything associated with it and write NULL to the provided pointer...
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
main external API structure.
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
int av_read_frame(AVFormatContext *s, AVPacket *pkt)
Return the next frame of a stream.
int64_t pkt_pts
PTS copied from the AVPacket that was decoded to produce this frame.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
int64_t pkt_dts
DTS copied from the AVPacket that triggered returning this frame.
int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
Read packets of a media file to get stream information.
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
void avformat_close_input(AVFormatContext **s)
Close an opened input AVFormatContext.
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
This structure stores compressed data.
void av_register_all(void)
Initialize libavformat and register all the muxers, demuxers and protocols.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
#define AV_NOPTS_VALUE
Undefined timestamp value.