31 #define LONG_BITSTREAM_READER // some ProRes vlc codes require up to 28 bits to be read at once
106 if (hdr_size > data_size) {
114 "unsupported header version: %d\n", version);
120 if (width != avctx->
width || height != avctx->
height) {
122 "picture dimension changed: old: %d x %d, new: %d x %d\n",
130 "unsupported frame type: %d\n", ctx->
frame_type);
156 "unsupported picture format: %d\n", ctx->
pic_format);
185 if (ptr - buf > hdr_size - 64) {
200 if (ptr - buf > hdr_size - 64) {
220 int i, hdr_size, pic_data_size, num_slices;
221 int slice_width_factor, slice_height_factor;
222 int remainder, num_x_slices;
223 const uint8_t *data_ptr, *index_ptr;
225 hdr_size = data_size > 0 ? buf[0] >> 3 : 0;
226 if (hdr_size < 8 || hdr_size > data_size) {
231 pic_data_size =
AV_RB32(buf + 1);
232 if (pic_data_size > data_size) {
237 slice_width_factor = buf[7] >> 4;
238 slice_height_factor = buf[7] & 0xF;
239 if (slice_width_factor > 3 || slice_height_factor) {
241 "unsupported slice dimension: %d x %d\n",
242 1 << slice_width_factor, 1 << slice_height_factor);
254 remainder = ctx->
num_x_mbs & ((1 << slice_width_factor) - 1);
255 num_x_slices = (ctx->
num_x_mbs >> slice_width_factor) + (remainder & 1) +
256 ((remainder >> 1) & 1) + ((remainder >> 2) & 1);
258 num_slices = num_x_slices * ctx->
num_y_mbs;
259 if (num_slices !=
AV_RB16(buf + 5)) {
272 if (hdr_size + num_slices * 2 > data_size) {
278 index_ptr = buf + hdr_size;
279 data_ptr = index_ptr + num_slices * 2;
281 for (i = 0; i < num_slices; i++) {
284 data_ptr +=
AV_RB16(index_ptr + i * 2);
289 if (data_ptr > buf + data_size) {
294 return pic_data_size;
303 unsigned int rice_order, exp_order, switch_bits;
304 unsigned int buf, code;
305 int log, prefix_len,
len;
312 switch_bits = (codebook & 3) + 1;
313 rice_order = codebook >> 5;
314 exp_order = (codebook >> 2) & 7;
318 if (log < switch_bits) {
324 prefix_len = log + 1;
325 code = (log << rice_order) +
NEG_USR32(buf << prefix_len, rice_order);
329 len = (log << 1) - switch_bits + exp_order + 1;
330 code =
NEG_USR32(buf, len) - (1 << exp_order) + (switch_bits << rice_order);
339 #define LSB2SIGN(x) (-((x) & 1))
340 #define TOSIGNED(x) (((x) >> 1) ^ LSB2SIGN(x))
359 for (i = 1; i < nblocks; i++, out += 64) {
362 sign = -(((delta >> 15) & 1) ^ (code & 1));
363 delta = (((code + 1) >> 1) ^ sign) - sign;
369 #define MAX_PADDING 16
375 int blocks_per_slice,
376 int plane_size_factor,
379 int pos, block_mask,
run,
level, sign, run_cb_index, lev_cb_index;
380 int max_coeffs, bits_left;
386 max_coeffs = blocks_per_slice << 6;
387 block_mask = blocks_per_slice - 1;
389 for (pos = blocks_per_slice - 1; pos < max_coeffs;) {
410 if (pos >= max_coeffs)
414 out[((pos & block_mask) << 6) + scan[pos >> plane_size_factor]] =
415 (level ^ sign) - sign;
427 int data_size, uint16_t *out_ptr,
428 int linesize,
int mbs_per_slice,
429 int blocks_per_mb,
int plane_size_factor,
430 const int16_t *qmat,
int is_chroma)
434 int mb_num, blocks_per_slice,
ret;
436 blocks_per_slice = mbs_per_slice * blocks_per_mb;
438 memset(td->
blocks, 0, 8 * 4 * 64 *
sizeof(*td->
blocks));
453 for (mb_num = 0; mb_num < mbs_per_slice; mb_num++, out_ptr += blocks_per_mb * 4) {
454 ctx->
dsp.
idct_put(out_ptr, linesize, block_ptr, qmat);
456 if (blocks_per_mb > 2) {
457 ctx->
dsp.
idct_put(out_ptr + 8, linesize, block_ptr, qmat);
460 ctx->
dsp.
idct_put(out_ptr + linesize * 4, linesize, block_ptr, qmat);
462 if (blocks_per_mb > 2) {
463 ctx->
dsp.
idct_put(out_ptr + linesize * 4 + 8, linesize, block_ptr, qmat);
468 for (mb_num = 0; mb_num < mbs_per_slice; mb_num++, out_ptr += blocks_per_mb * 4) {
469 ctx->
dsp.
idct_put(out_ptr, linesize, block_ptr, qmat);
471 ctx->
dsp.
idct_put(out_ptr + linesize * 4, linesize, block_ptr, qmat);
473 if (blocks_per_mb > 2) {
474 ctx->
dsp.
idct_put(out_ptr + 8, linesize, block_ptr, qmat);
476 ctx->
dsp.
idct_put(out_ptr + linesize * 4 + 8, linesize, block_ptr, qmat);
488 const int mask = (1 << num_bits) - 1;
489 int i, idx,
val, alpha_val;
499 val =
get_bits(gb, num_bits == 16 ? 7 : 4);
501 val = (val + 2) >> 1;
505 alpha_val = (alpha_val +
val) & mask;
507 dst[idx++] = alpha_val >> 6;
509 dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
510 if (idx >= num_coeffs) {
517 if (idx + val > num_coeffs)
518 val = num_coeffs - idx;
520 for (i = 0; i <
val; i++)
521 dst[idx++] = alpha_val >> 6;
523 for (i = 0; i <
val; i++)
524 dst[idx++] = (alpha_val << 2) | (alpha_val >> 6);
525 }
while (idx < num_coeffs);
533 uint16_t *out_ptr,
int linesize,
540 memset(td->
blocks, 0, 8 * 4 * 64 *
sizeof(*td->
blocks));
551 for (i = 0; i < 16; i++) {
552 memcpy(out_ptr, block_ptr, 16 * mbs_per_slice *
sizeof(*out_ptr));
553 out_ptr += linesize >> 1;
554 block_ptr += 16 * mbs_per_slice;
562 int mb_x_pos = td->
x_pos;
563 int mb_y_pos = td->
y_pos;
568 uint8_t *y_data, *u_data, *v_data, *a_data;
570 int i, sf, slice_width_factor;
571 int slice_data_size, hdr_size;
572 int y_data_size, u_data_size, v_data_size, a_data_size;
573 int y_linesize, u_linesize, v_linesize, a_linesize;
580 slice_width_factor =
av_log2(mbs_per_slice);
582 y_data = pic->
data[0];
583 u_data = pic->
data[1];
584 v_data = pic->
data[2];
585 a_data = pic->
data[3];
593 y_data += y_linesize;
594 u_data += u_linesize;
595 v_data += v_linesize;
597 a_data += a_linesize;
604 y_data += (mb_y_pos << 4) * y_linesize + (mb_x_pos << 5);
605 u_data += (mb_y_pos << 4) * u_linesize + (mb_x_pos << ctx->
mb_chroma_factor);
606 v_data += (mb_y_pos << 4) * v_linesize + (mb_x_pos << ctx->
mb_chroma_factor);
608 a_data += (mb_y_pos << 4) * a_linesize + (mb_x_pos << 5);
610 if (slice_data_size < 6) {
616 hdr_size = buf[0] >> 3;
618 y_data_size =
AV_RB16(buf + 2);
619 coff[1] = coff[0] + y_data_size;
620 u_data_size =
AV_RB16(buf + 4);
621 coff[2] = coff[1] + u_data_size;
622 v_data_size = hdr_size > 7 ?
AV_RB16(buf + 6) : slice_data_size - coff[2];
623 coff[3] = coff[2] + v_data_size;
624 a_data_size = ctx->
alpha_info ? slice_data_size - coff[3] : 0;
628 if (v_data_size < 0 || a_data_size < 0 || hdr_size < 6) {
633 sf = av_clip(buf[1], 1, 224);
634 sf = sf > 128 ? (sf - 96) << 2 : sf;
640 for (i = 0; i < 64; i++) {
648 (uint16_t*) y_data, y_linesize,
649 mbs_per_slice, 4, slice_width_factor + 2,
657 (uint16_t*) u_data, u_linesize,
666 (uint16_t*) v_data, v_linesize,
674 if (a_data && a_data_size)
676 (uint16_t*) a_data, a_linesize,
686 int slice_num, slice_width, x_pos, y_pos;
691 for (y_pos = 0; y_pos < ctx->
num_y_mbs; y_pos++) {
694 for (x_pos = 0; x_pos < ctx->
num_x_mbs && slice_width;
695 x_pos += slice_width) {
696 while (ctx->
num_x_mbs - x_pos < slice_width)
714 #define MOVE_DATA_PTR(nbytes) buf += (nbytes); buf_size -= (nbytes)
721 int buf_size = avpkt->
size;
722 int frame_hdr_size, pic_num, pic_data_size;
729 if (buf_size < 28 || buf_size <
AV_RB32(buf) ||
738 if (frame_hdr_size < 0)
748 if (pic_data_size < 0)
775 .
name =
"prores_lgpl",
static int decode_picture_header(ProresContext *ctx, const uint8_t *buf, const int data_size, AVCodecContext *avctx)
const char const char void * val
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
ptrdiff_t const GLvoid * data
static int decode_frame_header(ProresContext *ctx, const uint8_t *buf, const int data_size, AVCodecContext *avctx)
#define AV_PIX_FMT_YUVA422P10
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
const uint8_t ff_prores_ac_codebook[7]
static av_cold int init(AVCodecContext *avctx)
uint8_t qmat_chroma[64]
dequantization matrix for chroma
av_cold void ff_proresdsp_init(ProresDSPContext *dsp, AVCodecContext *avctx)
#define DECLARE_ALIGNED(n, t, v)
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_RB16
static int decode_picture(ProresContext *ctx, int pic_num, AVCodecContext *avctx)
int scantable_type
-1 = uninitialized, 0 = progressive, 1/2 = interlaced
#define MOVE_DATA_PTR(nbytes)
static int get_sbits(GetBitContext *s, int n)
const uint8_t * index
pointers to the data of this slice
AVCodec ff_prores_lgpl_decoder
static int decode_slice(AVCodecContext *avctx, void *tdata)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
const uint8_t ff_prores_run_to_cb_index[16]
Lookup tables for adaptive switching between codebooks according with previous run/level value...
const uint8_t ff_prores_lev_to_cb_index[10]
bitstream reader API header.
int interlaced_frame
The content of the picture is interlaced.
static int decode_ac_coeffs(GetBitContext *gb, int16_t *out, int blocks_per_slice, int plane_size_factor, const uint8_t *scan)
Decode AC coefficients for all blocks in a slice.
ProresThreadData * slice_data
int16_t qmat_chroma_scaled[64]
static int get_bits_left(GetBitContext *gb)
#define UPDATE_CACHE(name, gb)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static const uint16_t mask[17]
int skip_alpha
Skip processing alpha if supported by codec.
#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.
#define AV_PIX_FMT_YUV444P10
#define CLOSE_READER(name, gb)
Libavcodec external API header.
static av_cold int decode_close(AVCodecContext *avctx)
enum AVPictureType pict_type
Picture type of the frame.
static void decode_dc_coeffs(GetBitContext *gb, int16_t *out, int nblocks)
Decode DC coefficients for all blocks in a slice.
int num_chroma_blocks
number of chrominance blocks in a macroblock
int width
picture width / height.
static int decode_slice_plane(ProresContext *ctx, ProresThreadData *td, const uint8_t *buf, int data_size, uint16_t *out_ptr, int linesize, int mbs_per_slice, int blocks_per_mb, int plane_size_factor, const int16_t *qmat, int is_chroma)
Decode a slice plane (luma or chroma).
uint8_t idct_permutation[64]
const uint8_t ff_prores_dc_codebook[4]
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
static unsigned int show_bits(GetBitContext *s, int n)
Show 1-25 bits.
#define LAST_SKIP_BITS(name, gb, num)
static av_cold int decode_init(AVCodecContext *avctx)
int total_slices
total number of slices in a picture
#define AV_PIX_FMT_YUVA444P10
static int decode_vlc_codeword(GetBitContext *gb, unsigned codebook)
Read an unsigned rice/exp golomb codeword.
const uint8_t ff_prores_interlaced_scan[64]
static void decode_alpha_plane(ProresContext *ctx, ProresThreadData *td, const uint8_t *buf, int data_size, uint16_t *out_ptr, int linesize, int mbs_per_slice)
Decode alpha slice plane.
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
main external API structure.
void(* idct_put)(uint16_t *out, int linesize, int16_t *block, const int16_t *qmat)
const uint8_t ff_prores_progressive_scan[64]
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
#define OPEN_READER(name, gb)
static unsigned int get_bits1(GetBitContext *s)
BYTE int const BYTE int int int height
enum AVColorSpace colorspace
YUV colorspace type.
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
#define GET_CACHE(name, gb)
static void unpack_alpha(GetBitContext *gb, uint16_t *dst, int num_coeffs, const int num_bits)
int pic_format
2 = 422, 3 = 444
#define AV_PIX_FMT_YUV422P10
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
int prev_slice_sf
scalefactor of the previous decoded slice
static int decode(AVCodecContext *avctx, void *data, int *got_sub, AVPacket *avpkt)
#define CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
common internal api header.
int qmat_changed
1 - global quantization matrices changed
#define PRORES_BITS_PER_SAMPLE
output precision of prores decoder
av_cold void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable)
int(* execute)(struct AVCodecContext *c, int(*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size)
The codec may call this to execute several independent things.
int top_field_first
If the content is interlaced, is top field displayed first.
int key_frame
1 -> keyframe, 0-> not
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
#define av_malloc_array(a, b)
uint8_t qmat_luma[64]
dequantization matrix for luma
int frame_type
0 = progressive, 1 = tff, 2 = bff
This structure stores compressed data.
int16_t qmat_luma_scaled[64]