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 * draw_horiz_band test.
25 */
26
31
35
38 {
39 int i;
41 int chroma_w, chroma_h;
42 int shift_slice_position;
43 int shift_height;
44
46
50 shift_slice_position = -((-slice_position) >> pix_fmt_desc->
log2_chroma_h);
52
53 for (i = 0; i <
height; i++) {
56 }
57 for (i = 0; i < chroma_h; i++) {
59 fr->
data[1] + offset[1] + i * fr->
linesize[1], chroma_w);
60 }
61 for (i = 0; i < chroma_h; i++) {
63 fr->
data[2] + offset[2] + i * fr->
linesize[2], chroma_w);
64 }
65 }
66
68 {
76 int number_of_written_bytes;
78 int got_frame = 0;
79 int byte_buffer_size;
80 int result;
81 int end_of_stream = 0;
82
84
86 if (result < 0) {
88 return result;
89 }
90
92 if (result < 0) {
94 return result;
95 }
96
98 if (video_stream < 0) {
100 return -1;
101 }
102
104
106 if (!codec) {
108 return -1;
109 }
110
112 if (!ctx) {
115 }
116
118 if (result) {
120 return result;
121 }
122
125
127 if (result < 0) {
129 return result;
130 }
131
133 if (!fr) {
136 }
137
138 if (strcmp(codec->
name,
"flv") && strcmp(codec->
name,
"mpeg4") && strcmp(codec->
name,
"huffyuv")) {
140 return -1;
141 }
142
144 byte_buffer =
av_malloc(byte_buffer_size);
145 if (!byte_buffer) {
148 }
149
154 }
157
159 do {
160 if (!end_of_stream) {
162 end_of_stream = 1;
163 }
164 }
165 if (end_of_stream) {
168 }
169 if (pkt.
stream_index == video_stream || end_of_stream) {
170 got_frame = 0;
172 if (result < 0) {
174 return result;
175 }
176 if (got_frame) {
180 if (number_of_written_bytes < 0) {
182 return number_of_written_bytes;
183 }
186 return -1;
187 }
191 return -1;
192 }
193 }
196 }
197 } while (!end_of_stream || got_frame);
198
206 return 0;
207 }
208
209 int main(
int argc,
char **argv)
210 {
211 if (argc < 2)
212 {
213 av_log(
NULL,
AV_LOG_ERROR,
"Incorrect input: expected %s <name of a video file>\nNote that test works only for huffyuv, flv and mpeg4 decoders\n", argv[0]);
214 return 1;
215 }
216
218 return 1;
219
220 return 0;
221 }
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
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 void draw_horiz_band(AVCodecContext *ctx, const AVFrame *fr, int offset[4], int slice_position, int type, int height)
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
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
This struct describes the properties of an encoded stream.
static int video_decode(const char *input_filename)
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 avcodec_parameters_to_context(AVCodecContext *codec, const AVCodecParameters *par)
Fill the codec context based on the values from the supplied codec parameters.
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.
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
int main(int argc, char **argv)
const char * name
Name of the codec implementation.
static const uint8_t offset[127][2]
uint8_t slice_byte_buffer_size
void(* draw_horiz_band)(struct AVCodecContext *s, const AVFrame *src, int offset[AV_NUM_DATA_POINTERS], int y, int type, int height)
If non NULL, 'draw_horiz_band' is called by the libavcodec decoder to draw a horizontal band...
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
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
uint8_t * slice_byte_buffer
draw_horiz_band test.
Public header for Adler-32 hash function implementation.
Libavcodec external API header.
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.
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
int draw_horiz_band_called
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.
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.
AVCodecParameters * codecpar
Codec parameters associated with this stream.
This structure stores compressed data.