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66 uint64_t packet_size = (uint64_t)avpkt->
size * 8;
86 y = (uint16_t*)(
frame->data[0] +
i *
frame->linesize[0]);
87 u = (uint16_t*)(
frame->data[1] +
i *
frame->linesize[1]);
88 v = (uint16_t*)(
frame->data[2] +
i *
frame->linesize[2]);
90 for (j = 0; j < avctx->
width; j += 2) {
128 int buf_size = avpkt->
size;
133 frame->key_frame = 1;
153 .codec_tags = (
const uint32_t []){
154 MKTAG(
'U',
'Y',
'V',
'Y'),
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
static av_cold int init(AVCodecContext *avctx)
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 u(width, name, range_min, range_max)
This structure describes decoded (raw) audio or video data.
AVBufferRef * av_buffer_ref(const AVBufferRef *buf)
Create a new reference to an AVBuffer.
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
static int bitpacked_decode_yuv422p10(AVCodecContext *avctx, AVFrame *frame, const AVPacket *avpkt)
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
static int bitpacked_decode(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
#define FF_CODEC_TAGS_END
AVCodec.codec_tags termination value.
AVBufferRef * buf
A reference to the reference-counted buffer where the packet data is stored.
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it.
@ AV_PICTURE_TYPE_I
Intra.
#define AV_PIX_FMT_YUV422P10
static int bitpacked_decode_uyvy422(AVCodecContext *avctx, AVFrame *frame, const AVPacket *avpkt)
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
int av_image_fill_arrays(uint8_t *dst_data[4], int dst_linesize[4], const uint8_t *src, enum AVPixelFormat pix_fmt, int width, int height, int align)
Setup the data pointers and linesizes based on the specified image parameters and the provided array.
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
#define i(width, name, range_min, range_max)
const char * name
Name of the codec implementation.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
const AVCodec ff_bitpacked_decoder
@ AV_PIX_FMT_UYVY422
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
main external API structure.
int(* decode)(AVCodecContext *avctx, AVFrame *frame, const AVPacket *pkt)
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
This structure stores compressed data.
int width
picture width / height.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define MKTAG(a, b, c, d)
static av_cold int bitpacked_init_decoder(AVCodecContext *avctx)