47 cad->
param.info_level = 0;
65 int bytes_per_sample = pic->bytes_per_sample;
74 if (!pic || ret_type == DAVS2_GOT_HEADER) {
75 avctx->
width = headerset->width;
76 avctx->
height = headerset->height;
77 avctx->
pix_fmt = headerset->output_bit_depth == 10 ?
105 for (plane = 0; plane < 3; ++plane) {
106 int size_line = pic->widths[plane] * bytes_per_sample;
109 if (!frame->
buf[plane]){
110 av_log(avctx,
AV_LOG_ERROR,
"Decoder error: allocation failure, can't dump frames.\n");
117 for (line = 0; line < pic->lines[plane]; ++
line)
118 memcpy(frame->
data[plane] + line * size_line,
119 pic->planes[plane] + line * pic->strides[plane],
120 pic->widths[plane] * bytes_per_sample);
135 int ret = DAVS2_GOT_FRAME;
137 while (ret == DAVS2_GOT_FRAME) {
142 if (ret == DAVS2_ERROR) {
150 int ret = DAVS2_DEFAULT;
153 if (ret == DAVS2_ERROR) {
157 if (ret == DAVS2_GOT_FRAME) {
170 davs2_decoder_close(cad->
decoder);
181 int buf_size = avpkt->
size;
184 int ret = DAVS2_DEFAULT;
191 cad->
packet.data = buf_ptr;
192 cad->
packet.len = buf_size;
199 if (ret == DAVS2_ERROR) {
206 if (ret != DAVS2_DEFAULT) {
211 return ret == 0 ? buf_size :
ret;
227 .wrapper_name =
"libdavs2",
#define AV_CPU_FLAG_AVX
AVX functions: requires OS support even if YMM registers aren't used.
This structure describes decoded (raw) audio or video data.
ptrdiff_t const GLvoid * data
static void flush(AVCodecContext *avctx)
davs2_picture_t out_frame
#define AV_LOG_WARNING
Something somehow does not look correct.
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
static av_cold int init(AVCodecContext *avctx)
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static atomic_int cpu_flags
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
static int send_delayed_frame(AVCodecContext *avctx, AVFrame *frame, int *got_frame)
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
AVCodec ff_libdavs2_decoder
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
#define AV_LOG_VERBOSE
Detailed information.
#define AV_CPU_FLAG_AVX2
AVX2 functions: requires OS support even if YMM registers aren't used.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static av_cold int davs2_end(AVCodecContext *avctx)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
const char * name
Name of the codec implementation.
enum AVPictureType pict_type
Picture type of the frame.
int width
picture width / height.
static av_cold int davs2_init(AVCodecContext *avctx)
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Libavcodec external API header.
AVBufferRef * av_buffer_alloc(int size)
Allocate an AVBuffer of the given size using av_malloc().
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
main external API structure.
uint8_t * data
The data buffer.
#define AV_PIX_FMT_YUV420P10
static int davs2_dump_frames(AVCodecContext *avctx, davs2_picture_t *pic, int *got_frame, davs2_seq_info_t *headerset, int ret_type, AVFrame *frame)
static void davs2_flush(AVCodecContext *avctx)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
static enum AVPixelFormat pix_fmts[]
davs2_seq_info_t headerset
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
AVRational av_d2q(double d, int max)
Convert a double precision floating point number to a rational.
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
The official guide to swscale for confused that consecutive non overlapping rectangles of slice_bottom special converter These generally are unscaled converters of common like for each output line the vertical scaler pulls lines from a ring buffer When the ring buffer does not contain the wanted line
static int davs2_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
#define AVERROR_EXTERNAL
Generic error in an external library.
AVPixelFormat
Pixel format.
This structure stores compressed data.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...