32 int raten, rated, aspectn, aspectd,
ret;
34 const char *colorspace =
"";
35 const char *colorrange =
"";
50 if (aspectn == 0 && aspectd == 1)
55 if (field_order != st->codec->field_order && st->codec->field_order !=
AV_FIELD_UNKNOWN)
56 field_order = st->codec->field_order;
62 colorrange =
" XCOLORRANGE=LIMITED";
65 colorrange =
" XCOLORRANGE=FULL";
71 switch (field_order) {
76 default: inter =
'p';
break;
81 colorspace =
" Cmono";
84 colorspace =
" Cmono9";
87 colorspace =
" Cmono10";
90 colorspace =
" Cmono12";
93 colorspace =
" Cmono16";
96 colorspace =
" C411 XYSCSS=411";
99 colorspace =
" C420jpeg XYSCSS=420JPEG";
100 colorrange =
" XCOLORRANGE=FULL";
103 colorspace =
" C422 XYSCSS=422";
104 colorrange =
" XCOLORRANGE=FULL";
107 colorspace =
" C444 XYSCSS=444";
108 colorrange =
" XCOLORRANGE=FULL";
114 default: colorspace =
" C420jpeg XYSCSS=420JPEG";
break;
118 colorspace =
" C422 XYSCSS=422";
121 colorspace =
" C444 XYSCSS=444";
124 colorspace =
" C420p9 XYSCSS=420P9";
127 colorspace =
" C422p9 XYSCSS=422P9";
130 colorspace =
" C444p9 XYSCSS=444P9";
133 colorspace =
" C420p10 XYSCSS=420P10";
136 colorspace =
" C422p10 XYSCSS=422P10";
139 colorspace =
" C444p10 XYSCSS=444P10";
142 colorspace =
" C420p12 XYSCSS=420P12";
145 colorspace =
" C422p12 XYSCSS=422P12";
148 colorspace =
" C444p12 XYSCSS=444P12";
151 colorspace =
" C420p14 XYSCSS=420P14";
154 colorspace =
" C422p14 XYSCSS=422P14";
157 colorspace =
" C444p14 XYSCSS=444P14";
160 colorspace =
" C420p16 XYSCSS=420P16";
163 colorspace =
" C422p16 XYSCSS=422P16";
166 colorspace =
" C444p16 XYSCSS=444P16";
171 width, height, raten, rated, inter,
172 aspectn, aspectd, colorspace, colorrange);
175 "Error. YUV4MPEG stream header write failed.\n");
190 const uint8_t *ptr, *ptr1, *ptr2;
199 ptr = frame->
data[0];
254 ptr1 = frame->
data[1];
255 ptr2 = frame->
data[2];
282 "stream, some mjpegtools might not work.\n");
314 "Use '-strict -1' to encode to this pixel format.\n",
319 "Mjpegtools will not work.\n");
323 "yuv444p, yuv422p, yuv420p, yuv411p and gray8 pixel formats. " 324 "And using 'strict -1' also yuv444p9, yuv422p9, yuv420p9, " 325 "yuv444p10, yuv422p10, yuv420p10, " 326 "yuv444p12, yuv422p12, yuv420p12, " 327 "yuv444p14, yuv422p14, yuv420p14, " 328 "yuv444p16, yuv422p16, yuv420p16, " 329 "gray9, gray10, gray12 " 330 "and gray16 pixel formats. " 331 "Use -pix_fmt to select one.\n");
339 .
name =
"yuv4mpegpipe",
enum AVChromaLocation chroma_location
AVOutputFormat ff_yuv4mpegpipe_muxer
enum AVFieldOrder field_order
Video only.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
This structure describes decoded (raw) audio or video data.
#define AV_PIX_FMT_YUV444P14
static int yuv4_write_packet(AVFormatContext *s, AVPacket *pkt)
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
#define AV_LOG_WARNING
Something somehow does not look correct.
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown)
#define AV_PIX_FMT_YUV420P12
int strict_std_compliance
Allow non-standard and experimental extension.
#define AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY12
AVStream ** streams
A list of all streams in the file.
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
#define AV_PIX_FMT_YUV444P16
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
#define AV_PIX_FMT_YUV422P12
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
#define AV_PIX_FMT_YUV444P10
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
#define AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_GRAY16
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2.
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
enum AVColorRange color_range
Video only.
Passthrough codec, AVFrames wrapped in AVPacket.
static int yuv4_init(AVFormatContext *s)
#define AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P14
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
AVIOContext * pb
I/O context.
#define AV_PIX_FMT_YUV420P10
#define FF_COMPLIANCE_NORMAL
#define AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV444P12
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Narrow or limited range content.
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
#define FF_DISABLE_DEPRECATION_WARNINGS
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
#define FF_ENABLE_DEPRECATION_WARNINGS
AVCodecParameters * codecpar
Codec parameters associated with this stream.
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
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
static int yuv4_write_header(AVFormatContext *s)
This structure stores compressed data.
#define AV_PIX_FMT_YUV422P16
int avio_printf(AVIOContext *s, const char *fmt,...) av_printf_format(2
Writes a formatted string to the context.
#define AV_CEIL_RSHIFT(a, b)