158 int tiles_nb, packed_size, pixel_size = 0;
170 tiles_nb = bytestream2_get_le16(gbc);
178 tiles_nb *
sizeof(*ctx->
tiles));
190 uLongf packed_tiles_size;
193 packed_tiles_size = bytestream2_get_byte(gbc);
195 packed_tiles_size = bytestream2_get_le16(gbc);
197 ff_dlog(avctx,
"packed tiles of size %lu.\n", packed_tiles_size);
200 if (packed_tiles_size != tiles_nb *
TILE_SIZE) {
209 if (!inflated_tiles) {
214 ret = uncompress(inflated_tiles, &length,
215 gbc->
buffer, packed_tiles_size);
231 for (i = 0; i < tiles_nb; i++) {
232 ctx->
tiles[
i].
x = bytestream2_get_le16(gbc);
233 ctx->
tiles[
i].
w = bytestream2_get_le16(gbc);
234 ctx->
tiles[
i].
y = bytestream2_get_le16(gbc);
235 ctx->
tiles[
i].
h = bytestream2_get_le16(gbc);
245 ff_dlog(avctx,
"tile %d orig(%d,%d) %dx%d.\n", i,
251 "invalid tile %d at (%d.%d) with size %dx%d.\n", i,
259 "out of bounds tile %d at (%d.%d) with size %dx%d.\n", i,
271 if (pixel_size < 0x100)
272 packed_size = bytestream2_get_byte(gbc);
273 else if (pixel_size < 0x10000)
274 packed_size = bytestream2_get_le16(gbc);
275 else if (pixel_size < 0x1000000)
276 packed_size = bytestream2_get_le24(gbc);
278 packed_size = bytestream2_get_le32(gbc);
280 ff_dlog(avctx,
"pixel_size %d packed_size %d.\n", pixel_size, packed_size);
282 if (packed_size < 0) {
289 if (pixel_size == packed_size) {
319 for (i = 0; i < tiles_nb; i++) {
352 }
else if (palette) {
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
ptrdiff_t const GLvoid * data
#define AV_LOG_WARNING
Something somehow does not look correct.
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), little-endian, X=unused/undefined ...
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
static av_cold int rscc_init(AVCodecContext *avctx)
uint8_t palette[AVPALETTE_SIZE]
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
8 bits with AV_PIX_FMT_RGB32 palette
static av_cold int end(AVCodecContext *avctx)
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE bytes worth of palette...
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
uint8_t * av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type, int *size)
Get side information from packet.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Identical in function to ff_get_buffer(), except it reuses the existing buffer if available...
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
const char * name
Name of the codec implementation.
static int rscc_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
Allocate a buffer, reusing the given one if large enough.
common internal API header
int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of the image can be address...
enum AVPictureType pict_type
Picture type of the frame.
int width
picture width / height.
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
packed RGB 8:8:8, 24bpp, BGRBGR...
int discard_damaged_percentage
The percentage of damaged samples to discard a frame.
Libavcodec external API header.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
main external API structure.
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
static av_cold int rscc_close(AVCodecContext *avctx)
int palette_has_changed
Tell user application that palette has changed from previous frame.
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
common internal api header.
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
int key_frame
1 -> keyframe, 0-> not
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
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 MKTAG(a, b, c, d)
This structure stores compressed data.
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.