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 {
41 int number_of_written_bytes;
43 int got_frame = 0;
44 int byte_buffer_size;
45 int i = 0;
46 int result;
47 int end_of_stream = 0;
48
50 if (result < 0) {
52 return result;
53 }
54
56 if (result < 0) {
58 return result;
59 }
60
62 if (video_stream < 0) {
64 return -1;
65 }
66
68
70 if (!codec) {
72 return -1;
73 }
74
76 if (!ctx) {
79 }
80
82 if (result) {
84 return result;
85 }
86
88 if (result < 0) {
90 return result;
91 }
92
94 if (!fr) {
97 }
98
100 byte_buffer =
av_malloc(byte_buffer_size);
101 if (!byte_buffer) {
104 }
105
107 i = 0;
109 do {
110 if (!end_of_stream)
112 end_of_stream = 1;
113 if (end_of_stream) {
116 }
117 if (pkt.
stream_index == video_stream || end_of_stream) {
118 got_frame = 0;
122 if (result < 0) {
124 return result;
125 }
126 if (got_frame) {
130 if (number_of_written_bytes < 0) {
132 return number_of_written_bytes;
133 }
134 printf("%d, %10"PRId64", %10"PRId64", %8"PRId64", %8d, 0x%08lx\n", video_stream,
137 }
140 }
141 i++;
142 } while (!end_of_stream || got_frame);
143
150 return 0;
151 }
152
153 int main(
int argc,
char **argv)
154 {
155 if (argc < 2)
156 {
158 return 1;
159 }
160
162 return 1;
163
164 return 0;
165 }
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.
static AVFormatContext * fmt_ctx
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static AVStream * video_stream
This struct describes the properties of an encoded stream.
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.
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
AVStream ** streams
A list of all streams in the file.
int avcodec_parameters_to_context(AVCodecContext *codec, const AVCodecParameters *par)
Fill the codec context based on the values from the supplied codec parameters.
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.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
static int video_decode_example(const char *input_filename)
H264 codec test.
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
int width
picture width / height.
static const char * input_filename
Public header for Adler-32 hash function implementation.
Libavcodec external API header.
int64_t pkt_duration
duration of the corresponding packet, expressed in AVStream->time_base units, 0 if unknown...
attribute_deprecated 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 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.
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
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.
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.
int avformat_open_input(AVFormatContext **ps, const char *url, AVInputFormat *fmt, AVDictionary **options)
Open an input stream and read the header.
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
AVCodecParameters * codecpar
Codec parameters associated with this stream.
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.
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.