# directories that contain example code fragments that are included (see
# the \include command).
-EXAMPLE_PATH = libavcodec/api-example.c libavformat/output-example.c
+EXAMPLE_PATH = libavcodec/ libavformat/
# If the value of the EXAMPLE_PATH tag contains directories, you can use the
# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
# and *.h) to filter out the source-files in the directories. If left
# blank all files are included.
-EXAMPLE_PATTERNS =
+EXAMPLE_PATTERNS = *-example.c
# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
# searched for input files to be used with the \include or \dontinclude
ret = 0;
/* encode any samples remaining in fifo */
if (fifo_bytes > 0) {
- int osize = av_get_bits_per_sample_fmt(enc->sample_fmt) >> 3;
+ int osize = av_get_bytes_per_sample(enc->sample_fmt);
int fs_tmp = enc->frame_size;
av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
DynamicRangeControl che_drc;
/**
- * @defgroup elements Channel element related data.
+ * @name Channel element related data
* @{
*/
enum ChannelPosition che_pos[4][MAX_ELEM_ID]; /**< channel element channel mapping with the
/** @} */
/**
- * @defgroup temporary aligned temporary buffers (We do not want to have these on the stack.)
+ * @name temporary aligned temporary buffers
+ * (We do not want to have these on the stack.)
* @{
*/
DECLARE_ALIGNED(32, float, buf_mdct)[1024];
/** @} */
/**
- * @defgroup tables Computed / set up during initialization.
+ * @name Computed / set up during initialization
* @{
*/
FFTContext mdct;
/** @} */
/**
- * @defgroup output Members used for output interleaving.
+ * @name Members used for output interleaving
* @{
*/
float *output_data[MAX_CHANNELS]; ///< Points to each element's 'ret' buffer (PCM output).
* Coded AC-3 header values up to the lfeon element, plus derived values.
*/
typedef struct {
- /** @defgroup coded Coded elements
+ /** @name Coded elements
* @{
*/
uint16_t sync_word;
int num_blocks; ///< number of audio blocks
/** @} */
- /** @defgroup derived Derived values
+ /** @name Derived values
* @{
*/
uint8_t sr_shift;
AVCodecContext *avctx; ///< parent context
GetBitContext gbc; ///< bitstream reader
-///@defgroup bsi bit stream information
+///@name Bit stream information
///@{
int frame_type; ///< frame type (strmtyp)
int substreamid; ///< substream identification
int eac3; ///< indicates if current frame is E-AC-3
///@}
-///@defgroup audfrm frame syntax parameters
+///@name Frame syntax parameters
int snr_offset_strategy; ///< SNR offset strategy (snroffststr)
int block_switch_syntax; ///< block switch syntax enabled (blkswe)
int dither_flag_syntax; ///< dither flag syntax enabled (dithflage)
int skip_syntax; ///< skip field syntax enabled (skipflde)
///@}
-///@defgroup cpl standard coupling
+///@name Standard coupling
int cpl_in_use[AC3_MAX_BLOCKS]; ///< coupling in use (cplinu)
int cpl_strategy_exists[AC3_MAX_BLOCKS];///< coupling strategy exists (cplstre)
int channel_in_cpl[AC3_MAX_CHANNELS]; ///< channel in coupling (chincpl)
int cpl_coords[AC3_MAX_CHANNELS][AC3_MAX_CPL_BANDS]; ///< coupling coordinates (cplco)
///@}
-///@defgroup spx spectral extension
+///@name Spectral extension
///@{
int spx_in_use; ///< spectral extension in use (spxinu)
uint8_t channel_uses_spx[AC3_MAX_CHANNELS]; ///< channel uses spectral extension (chinspx)
float spx_signal_blend[AC3_MAX_CHANNELS][SPX_MAX_BANDS];///< spx signal blending factor (sblendfact)
///@}
-///@defgroup aht adaptive hybrid transform
+///@name Adaptive hybrid transform
int channel_uses_aht[AC3_MAX_CHANNELS]; ///< channel AHT in use (chahtinu)
int pre_mantissa[AC3_MAX_CHANNELS][AC3_MAX_COEFS][AC3_MAX_BLOCKS]; ///< pre-IDCT mantissas
///@}
-///@defgroup channel channel
+///@name Channel
int fbw_channels; ///< number of full-bandwidth channels
int channels; ///< number of total channels
int lfe_ch; ///< index of LFE channel
int out_channels; ///< number of output channels
///@}
-///@defgroup dynrng dynamic range
+///@name Dynamic range
float dynamic_range[2]; ///< dynamic range
///@}
-///@defgroup bandwidth bandwidth
+///@name Bandwidth
int start_freq[AC3_MAX_CHANNELS]; ///< start frequency bin (strtmant)
int end_freq[AC3_MAX_CHANNELS]; ///< end frequency bin (endmant)
///@}
-///@defgroup rematrixing rematrixing
+///@name Rematrixing
int num_rematrixing_bands; ///< number of rematrixing bands (nrematbnd)
int rematrixing_flags[4]; ///< rematrixing flags (rematflg)
///@}
-///@defgroup exponents exponents
+///@name Exponents
int num_exp_groups[AC3_MAX_CHANNELS]; ///< Number of exponent groups (nexpgrp)
int8_t dexps[AC3_MAX_CHANNELS][AC3_MAX_COEFS]; ///< decoded exponents
int exp_strategy[AC3_MAX_BLOCKS][AC3_MAX_CHANNELS]; ///< exponent strategies (expstr)
///@}
-///@defgroup bitalloc bit allocation
+///@name Bit allocation
AC3BitAllocParameters bit_alloc_params; ///< bit allocation parameters
int first_cpl_leak; ///< first coupling leak state (firstcplleak)
int snr_offset[AC3_MAX_CHANNELS]; ///< signal-to-noise ratio offsets (snroffst)
uint8_t dba_values[AC3_MAX_CHANNELS][8]; ///< delta values for each segment
///@}
-///@defgroup dithering zero-mantissa dithering
+///@name Zero-mantissa dithering
int dither_flag[AC3_MAX_CHANNELS]; ///< dither flags (dithflg)
AVLFG dith_state; ///< for dither generation
///@}
-///@defgroup imdct IMDCT
+///@name IMDCT
int block_switch[AC3_MAX_CHANNELS]; ///< block switch flags (blksw)
FFTContext imdct_512; ///< for 512 sample IMDCT
FFTContext imdct_256; ///< for 256 sample IMDCT
///@}
-///@defgroup opt optimization
+///@name Optimization
DSPContext dsp; ///< for optimization
AC3DSPContext ac3dsp;
FmtConvertContext fmt_conv; ///< optimized conversion functions
float mul_bias; ///< scaling for float_to_int16 conversion
///@}
-///@defgroup arrays aligned arrays
+///@name Aligned arrays
DECLARE_ALIGNED(16, int, fixed_coeffs)[AC3_MAX_CHANNELS][AC3_MAX_COEFS]; ///< fixed-point transform coefficients
DECLARE_ALIGNED(32, float, transform_coeffs)[AC3_MAX_CHANNELS][AC3_MAX_COEFS]; ///< transform coefficients
DECLARE_ALIGNED(32, float, delay)[AC3_MAX_CHANNELS][AC3_BLOCK_SIZE]; ///< delay - added to the next block
}
-/// @defgroup amr_lpc_decoding AMR pitch LPC coefficient decoding functions
+/// @name AMR pitch LPC coefficient decoding functions
/// @{
/**
/// @}
-/// @defgroup amr_pitch_vector_decoding AMR pitch vector decoding functions
+/// @name AMR pitch vector decoding functions
/// @{
/**
/// @}
-/// @defgroup amr_algebraic_code_book AMR algebraic code book (fixed) vector decoding functions
+/// @name AMR algebraic code book (fixed) vector decoding functions
/// @{
/**
/// @}
-/// @defgroup amr_gain_decoding AMR gain decoding functions
+/// @name AMR gain decoding functions
/// @{
/**
/// @}
-/// @defgroup amr_pre_processing AMR pre-processing functions
+/// @name AMR preprocessing functions
/// @{
/**
/// @}
-/// @defgroup amr_synthesis AMR synthesis functions
+/// @name AMR synthesis functions
/// @{
/**
/// @}
-/// @defgroup amr_update AMR update functions
+/// @name AMR update functions
/// @{
/**
/// @}
-/// @defgroup amr_postproc AMR Post processing functions
+/// @name AMR Postprocessing functions
/// @{
/**
}
/**
- * @defgroup rangecoder APE range decoder
+ * @name APE range decoding functions
* @{
*/
endfunc
function ff_ac3_extract_exponents_neon, export=1
- vmov.i32 q14, #24
vmov.i32 q15, #8
1:
- vld1.32 {q0}, [r1,:128]
+ vld1.32 {q0}, [r1,:128]!
vabs.s32 q1, q0
vclz.i32 q3, q1
vsub.i32 q3, q3, q15
- vcge.s32 q2, q3, q14
- vbit q3, q14, q2
- vbic q0, q0, q2
vmovn.i32 d6, q3
vmovn.i16 d6, q3
- vst1.32 {q0}, [r1,:128]!
vst1.32 {d6[0]}, [r0,:32]!
subs r2, r2, #4
bgt 1b
void ff_vector_clipf_neon(float *dst, const float *src, float min, float max,
int len);
+void ff_vector_clip_int32_neon(int32_t *dst, const int32_t *src, int32_t min,
+ int32_t max, unsigned int len);
void ff_vorbis_inverse_coupling_neon(float *mag, float *ang, int blocksize);
c->vector_fmul_reverse = ff_vector_fmul_reverse_neon;
c->vector_fmul_add = ff_vector_fmul_add_neon;
c->vector_clipf = ff_vector_clipf_neon;
+ c->vector_clip_int32 = ff_vector_clip_int32_neon;
c->vector_fmul_sv_scalar[0] = ff_vector_fmul_sv_scalar_2_neon;
c->vector_fmul_sv_scalar[1] = ff_vector_fmul_sv_scalar_4_neon;
pop {r4,pc}
endfunc
+
+function ff_vector_clip_int32_neon, export=1
+ vdup.32 q0, r2
+ vdup.32 q1, r3
+ ldr r2, [sp]
+1:
+ vld1.32 {q2-q3}, [r1,:128]!
+ vmin.s32 q2, q2, q1
+ vmin.s32 q3, q3, q1
+ vmax.s32 q2, q2, q0
+ vmax.s32 q3, q3, q0
+ vst1.32 {q2-q3}, [r0,:128]!
+ subs r2, r2, #8
+ bgt 1b
+ bx lr
+endfunc
#include "avcodec.h"
/**
- * Default values for ASS style.
- * @defgroup ass_default
+ * @name Default values for ASS style
* @{
*/
#define ASS_DEFAULT_FONT "Arial"
#if FF_API_FLAC_GLOBAL_OPTS
/**
- * @defgroup flac_opts FLAC options
+ * @name FLAC options
* @deprecated Use FLAC encoder private options instead.
* @{
*/
const AVProfile *profiles; ///< array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
/**
- * @defgroup framethreading Frame-level threading support functions.
+ * @name Frame-level threading support functions
* @{
*/
/**
#if FF_API_OLD_SAMPLE_FMT
/**
- * @deprecated Use av_get_bits_per_sample_fmt() instead.
+ * @deprecated Use av_get_bytes_per_sample() instead.
*/
attribute_deprecated
int av_get_bits_per_sample_format(enum AVSampleFormat sample_fmt);
void align_put_bits(PutBitContext *s)
{
-#ifdef ALT_BITSTREAM_WRITER
- put_bits(s,( - s->index) & 7,0);
-#else
put_bits(s,s->bit_left & 7,0);
-#endif
}
void ff_put_string(PutBitContext *pb, const char *string, int terminate_string)
int cabac_init_idc;
/**
- * @defgroup multithreading Members for slice based multithreading
+ * @name Members for slice based multithreading
* @{
*/
struct H264Context *thread_context[MAX_THREADS];
int d= 100 / s->avctx->error_rate;
if(r % d == 0){
current_packet_size=0;
-#ifndef ALT_BITSTREAM_WRITER
s->pb.buf_ptr= s->ptr_lastgob;
-#endif
assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
}
}
#include "mathops.h"
#include "config.h"
-//#define ALT_BITSTREAM_WRITER
-//#define ALIGNED_BITSTREAM_WRITER
-
-/* buf and buf_end must be present and used by every alternative writer. */
typedef struct PutBitContext {
-#ifdef ALT_BITSTREAM_WRITER
- uint8_t *buf, *buf_end;
- int index;
-#else
uint32_t bit_buf;
int bit_left;
uint8_t *buf, *buf_ptr, *buf_end;
-#endif
int size_in_bits;
} PutBitContext;
s->size_in_bits= 8*buffer_size;
s->buf = buffer;
s->buf_end = s->buf + buffer_size;
-#ifdef ALT_BITSTREAM_WRITER
- s->index=0;
- ((uint32_t*)(s->buf))[0]=0;
-// memset(buffer, 0, buffer_size);
-#else
s->buf_ptr = s->buf;
s->bit_left=32;
s->bit_buf=0;
-#endif
}
/**
*/
static inline int put_bits_count(PutBitContext *s)
{
-#ifdef ALT_BITSTREAM_WRITER
- return s->index;
-#else
return (s->buf_ptr - s->buf) * 8 + 32 - s->bit_left;
-#endif
}
/**
*/
static inline void flush_put_bits(PutBitContext *s)
{
-#ifdef ALT_BITSTREAM_WRITER
- align_put_bits(s);
-#else
#ifndef BITSTREAM_WRITER_LE
s->bit_buf<<= s->bit_left;
#endif
}
s->bit_left=32;
s->bit_buf=0;
-#endif
}
-#if defined(ALT_BITSTREAM_WRITER) || defined(BITSTREAM_WRITER_LE)
+#ifdef BITSTREAM_WRITER_LE
#define align_put_bits align_put_bits_unsupported_here
#define ff_put_string ff_put_string_unsupported_here
#define ff_copy_bits ff_copy_bits_unsupported_here
* Use put_bits32 to write 32 bits.
*/
static inline void put_bits(PutBitContext *s, int n, unsigned int value)
-#ifndef ALT_BITSTREAM_WRITER
{
unsigned int bit_buf;
int bit_left;
#ifdef BITSTREAM_WRITER_LE
bit_buf |= value << (32 - bit_left);
if (n >= bit_left) {
-#if !HAVE_FAST_UNALIGNED
- if (3 & (intptr_t) s->buf_ptr) {
- AV_WL32(s->buf_ptr, bit_buf);
- } else
-#endif
- *(uint32_t *)s->buf_ptr = av_le2ne32(bit_buf);
+ AV_WL32(s->buf_ptr, bit_buf);
s->buf_ptr+=4;
bit_buf = (bit_left==32)?0:value >> bit_left;
bit_left+=32;
} else {
bit_buf<<=bit_left;
bit_buf |= value >> (n - bit_left);
-#if !HAVE_FAST_UNALIGNED
- if (3 & (intptr_t) s->buf_ptr) {
- AV_WB32(s->buf_ptr, bit_buf);
- } else
-#endif
- *(uint32_t *)s->buf_ptr = av_be2ne32(bit_buf);
+ AV_WB32(s->buf_ptr, bit_buf);
//printf("bitbuf = %08x\n", bit_buf);
s->buf_ptr+=4;
bit_left+=32 - n;
s->bit_buf = bit_buf;
s->bit_left = bit_left;
}
-#else /* ALT_BITSTREAM_WRITER defined */
-{
-# ifdef ALIGNED_BITSTREAM_WRITER
-# if ARCH_X86
- __asm__ volatile(
- "movl %0, %%ecx \n\t"
- "xorl %%eax, %%eax \n\t"
- "shrdl %%cl, %1, %%eax \n\t"
- "shrl %%cl, %1 \n\t"
- "movl %0, %%ecx \n\t"
- "shrl $3, %%ecx \n\t"
- "andl $0xFFFFFFFC, %%ecx \n\t"
- "bswapl %1 \n\t"
- "orl %1, (%2, %%ecx) \n\t"
- "bswapl %%eax \n\t"
- "addl %3, %0 \n\t"
- "movl %%eax, 4(%2, %%ecx) \n\t"
- : "=&r" (s->index), "=&r" (value)
- : "r" (s->buf), "r" (n), "0" (s->index), "1" (value<<(-n))
- : "%eax", "%ecx"
- );
-# else
- int index= s->index;
- uint32_t *ptr= ((uint32_t *)s->buf)+(index>>5);
-
- value<<= 32-n;
-
- ptr[0] |= av_be2ne32(value>>(index&31));
- ptr[1] = av_be2ne32(value<<(32-(index&31)));
-//if(n>24) printf("%d %d\n", n, value);
- index+= n;
- s->index= index;
-# endif
-# else //ALIGNED_BITSTREAM_WRITER
-# if ARCH_X86
- __asm__ volatile(
- "movl $7, %%ecx \n\t"
- "andl %0, %%ecx \n\t"
- "addl %3, %%ecx \n\t"
- "negl %%ecx \n\t"
- "shll %%cl, %1 \n\t"
- "bswapl %1 \n\t"
- "movl %0, %%ecx \n\t"
- "shrl $3, %%ecx \n\t"
- "orl %1, (%%ecx, %2) \n\t"
- "addl %3, %0 \n\t"
- "movl $0, 4(%%ecx, %2) \n\t"
- : "=&r" (s->index), "=&r" (value)
- : "r" (s->buf), "r" (n), "0" (s->index), "1" (value)
- : "%ecx"
- );
-# else
- int index= s->index;
- uint32_t *ptr= (uint32_t*)(((uint8_t *)s->buf)+(index>>3));
-
- ptr[0] |= av_be2ne32(value<<(32-n-(index&7) ));
- ptr[1] = 0;
-//if(n>24) printf("%d %d\n", n, value);
- index+= n;
- s->index= index;
-# endif
-# endif //!ALIGNED_BITSTREAM_WRITER
-}
-#endif
static inline void put_sbits(PutBitContext *pb, int n, int32_t value)
{
*/
static inline uint8_t* put_bits_ptr(PutBitContext *s)
{
-#ifdef ALT_BITSTREAM_WRITER
- return s->buf + (s->index>>3);
-#else
return s->buf_ptr;
-#endif
}
/**
static inline void skip_put_bytes(PutBitContext *s, int n)
{
assert((put_bits_count(s)&7)==0);
-#ifdef ALT_BITSTREAM_WRITER
- FIXME may need some cleaning of the buffer
- s->index += n<<3;
-#else
assert(s->bit_left==32);
s->buf_ptr += n;
-#endif
}
/**
*/
static inline void skip_put_bits(PutBitContext *s, int n)
{
-#ifdef ALT_BITSTREAM_WRITER
- s->index += n;
-#else
s->bit_left -= n;
s->buf_ptr-= 4*(s->bit_left>>5);
s->bit_left &= 31;
-#endif
}
/**
* QCELP unpacked data frame
*/
typedef struct {
-/// @defgroup qcelp_codebook_parameters QCELP excitation codebook parameters
+/// @name QCELP excitation codebook parameters
/// @{
uint8_t cbsign[16]; ///!< sign of the codebook gain for each codebook subframe
uint8_t cbgain[16]; ///!< unsigned codebook gain for each codebook subframe
uint8_t cindex[16]; ///!< codebook index for each codebook subframe
/// @}
-/// @defgroup qcelp_pitch_parameters QCELP pitch prediction parameters
+/// @name QCELP pitch prediction parameters
/// @{
uint8_t plag[4]; ///!< pitch lag for each pitch subframe
uint8_t pfrac[4]; ///!< fractional pitch lag for each pitch subframe
static RV34VLC intra_vlcs[NUM_INTRA_TABLES], inter_vlcs[NUM_INTER_TABLES];
+static int rv34_decode_mv(RV34DecContext *r, int block_type);
+
/**
- * @defgroup vlc RV30/40 VLC generating functions
+ * @name RV30/40 VLC generating functions
* @{
*/
/**
- * @defgroup transform RV30/40 inverse transform functions
+ * @name RV30/40 inverse transform functions
* @{
*/
/**
- * @defgroup block RV30/40 4x4 block decoding functions
+ * @name RV30/40 4x4 block decoding functions
* @{
*/
/**
- * @defgroup rv3040_bitstream RV30/40 bitstream parsing
+ * @name RV30/40 bitstream parsing
* @{
*/
return get_bits(gb, 5);
}
+/**
+ * Decode macroblock header and return CBP in case of success, -1 otherwise.
+ */
+static int rv34_decode_mb_header(RV34DecContext *r, int8_t *intra_types)
+{
+ MpegEncContext *s = &r->s;
+ GetBitContext *gb = &s->gb;
+ int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
+ int i, t;
+
+ if(!r->si.type){
+ r->is16 = get_bits1(gb);
+ if(!r->is16 && !r->rv30){
+ if(!get_bits1(gb))
+ av_log(s->avctx, AV_LOG_ERROR, "Need DQUANT\n");
+ }
+ s->current_picture_ptr->mb_type[mb_pos] = r->is16 ? MB_TYPE_INTRA16x16 : MB_TYPE_INTRA;
+ r->block_type = r->is16 ? RV34_MB_TYPE_INTRA16x16 : RV34_MB_TYPE_INTRA;
+ }else{
+ r->block_type = r->decode_mb_info(r);
+ if(r->block_type == -1)
+ return -1;
+ s->current_picture_ptr->mb_type[mb_pos] = rv34_mb_type_to_lavc[r->block_type];
+ r->mb_type[mb_pos] = r->block_type;
+ if(r->block_type == RV34_MB_SKIP){
+ if(s->pict_type == AV_PICTURE_TYPE_P)
+ r->mb_type[mb_pos] = RV34_MB_P_16x16;
+ if(s->pict_type == AV_PICTURE_TYPE_B)
+ r->mb_type[mb_pos] = RV34_MB_B_DIRECT;
+ }
+ r->is16 = !!IS_INTRA16x16(s->current_picture_ptr->mb_type[mb_pos]);
+ rv34_decode_mv(r, r->block_type);
+ if(r->block_type == RV34_MB_SKIP){
+ fill_rectangle(intra_types, 4, 4, r->intra_types_stride, 0, sizeof(intra_types[0]));
+ return 0;
+ }
+ r->chroma_vlc = 1;
+ r->luma_vlc = 0;
+ }
+ if(IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){
+ if(r->is16){
+ t = get_bits(gb, 2);
+ fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0]));
+ r->luma_vlc = 2;
+ }else{
+ if(r->decode_intra_types(r, gb, intra_types) < 0)
+ return -1;
+ r->luma_vlc = 1;
+ }
+ r->chroma_vlc = 0;
+ r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
+ }else{
+ for(i = 0; i < 16; i++)
+ intra_types[(i & 3) + (i>>2) * r->intra_types_stride] = 0;
+ r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1);
+ if(r->mb_type[mb_pos] == RV34_MB_P_MIX16x16){
+ r->is16 = 1;
+ r->chroma_vlc = 1;
+ r->luma_vlc = 2;
+ r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
+ }
+ }
+
+ return rv34_decode_cbp(gb, r->cur_vlcs, r->is16);
+}
+
/** @} */ //bitstream functions
/**
- * @defgroup mv motion vector related code (prediction, reconstruction, motion compensation)
+ * @name motion vector related code (prediction, reconstruction, motion compensation)
* @{
*/
/** @} */ // mv group
/**
- * @defgroup recons Macroblock reconstruction functions
+ * @name Macroblock reconstruction functions
* @{
*/
/** mapping of RV30/40 intra prediction types to standard H.264 types */
}
}
-/** @} */ // recons group
-
-/**
- * @addtogroup bitstream
- * Decode macroblock header and return CBP in case of success, -1 otherwise.
- */
-static int rv34_decode_mb_header(RV34DecContext *r, int8_t *intra_types)
-{
- MpegEncContext *s = &r->s;
- GetBitContext *gb = &s->gb;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int i, t;
-
- if(!r->si.type){
- r->is16 = get_bits1(gb);
- if(!r->is16 && !r->rv30){
- if(!get_bits1(gb))
- av_log(s->avctx, AV_LOG_ERROR, "Need DQUANT\n");
- }
- s->current_picture_ptr->mb_type[mb_pos] = r->is16 ? MB_TYPE_INTRA16x16 : MB_TYPE_INTRA;
- r->block_type = r->is16 ? RV34_MB_TYPE_INTRA16x16 : RV34_MB_TYPE_INTRA;
- }else{
- r->block_type = r->decode_mb_info(r);
- if(r->block_type == -1)
- return -1;
- s->current_picture_ptr->mb_type[mb_pos] = rv34_mb_type_to_lavc[r->block_type];
- r->mb_type[mb_pos] = r->block_type;
- if(r->block_type == RV34_MB_SKIP){
- if(s->pict_type == AV_PICTURE_TYPE_P)
- r->mb_type[mb_pos] = RV34_MB_P_16x16;
- if(s->pict_type == AV_PICTURE_TYPE_B)
- r->mb_type[mb_pos] = RV34_MB_B_DIRECT;
- }
- r->is16 = !!IS_INTRA16x16(s->current_picture_ptr->mb_type[mb_pos]);
- rv34_decode_mv(r, r->block_type);
- if(r->block_type == RV34_MB_SKIP){
- fill_rectangle(intra_types, 4, 4, r->intra_types_stride, 0, sizeof(intra_types[0]));
- return 0;
- }
- r->chroma_vlc = 1;
- r->luma_vlc = 0;
- }
- if(IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){
- if(r->is16){
- t = get_bits(gb, 2);
- fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0]));
- r->luma_vlc = 2;
- }else{
- if(r->decode_intra_types(r, gb, intra_types) < 0)
- return -1;
- r->luma_vlc = 1;
- }
- r->chroma_vlc = 0;
- r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
- }else{
- for(i = 0; i < 16; i++)
- intra_types[(i & 3) + (i>>2) * r->intra_types_stride] = 0;
- r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1);
- if(r->mb_type[mb_pos] == RV34_MB_P_MIX16x16){
- r->is16 = 1;
- r->chroma_vlc = 1;
- r->luma_vlc = 2;
- r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
- }
- }
-
- return rv34_decode_cbp(gb, r->cur_vlcs, r->is16);
-}
-
-/**
- * @addtogroup recons
- * @{
- */
/**
* mask for retrieving all bits in coded block pattern
* corresponding to one 8x8 block
#define U_CBP_MASK 0x0F0000
#define V_CBP_MASK 0xF00000
+/** @} */ // recons group
+
static void rv34_apply_differences(RV34DecContext *r, int cbp)
{
};
/**
- * @defgroup loopfilter coefficients used by the RV40 loop filter
+ * @name Coefficients used by the RV40 loop filter
* @{
*/
/**
uint8_t bs_xover_band;
/**
- * @defgroup bs_header_extra_1 Variables associated with bs_header_extra_1
+ * @name Variables associated with bs_header_extra_1
* @{
*/
uint8_t bs_freq_scale;
*/
typedef struct {
/**
- * @defgroup aac_bitstream Main bitstream data variables
+ * @name Main bitstream data variables
* @{
*/
unsigned bs_frame_class;
/** @} */
/**
- * @defgroup state State variables
+ * @name State variables
* @{
*/
DECLARE_ALIGNED(16, float, synthesis_filterbank_samples)[SBR_SYNTHESIS_BUF_SIZE];
SpectrumParameters spectrum_params;
int bs_amp_res_header;
/**
- * @defgroup bs_header_extra_2 variables associated with bs_header_extra_2
+ * @name Variables associated with bs_header_extra_2
* @{
*/
unsigned bs_limiter_bands;
}
/**
- * @defgroup printfuncs Predefined functions for printing tables
+ * @name Predefined functions for printing tables
*
* \{
*/
/***********************************************************************/
/**
- * @defgroup vc1bitplane VC-1 Bitplane decoding
+ * @name VC-1 Bitplane decoding
* @see 8.7, p56
* @{
*/
/***********************************************************************/
/**
- * @defgroup vc1bitplane VC-1 Bitplane decoding
+ * @name VC-1 Bitplane decoding
* @see 8.7, p56
* @{
*/
/***********************************************************************/
/**
- * @defgroup vc1block VC-1 Block-level functions
+ * @name VC-1 Block-level functions
* @see 7.1.4, p91 and 8.1.1.7, p(1)04
* @{
*/
/** @} */ // Block group
/**
- * @defgroup vc1_std_mb VC1 Macroblock-level functions in Simple/Main Profiles
+ * @name VC1 Macroblock-level functions in Simple/Main Profiles
* @see 7.1.4, p91 and 8.1.1.7, p(1)04
* @{
*/
*/
typedef struct {
/**
- * @defgroup struct_global Global values
- * Global values, specified in the stream header / extradata or used
- * all over.
+ * @name Global values specified in the stream header / extradata or used all over.
* @{
*/
GetBitContext gb; ///< packet bitreader. During decoder init,
/**
* @}
- * @defgroup struct_packet Packet values
- * Packet values, specified in the packet header or related to a packet.
+ *
+ * @name Packet values specified in the packet header or related to a packet.
+ *
* A packet is considered to be a single unit of data provided to this
* decoder by the demuxer.
* @{
/**
* @}
- * @defgroup struct_frame Frame and superframe values
+ *
+ * @name Frame and superframe values
* Superframe and frame data - these can change from frame to frame,
* although some of them do in that case serve as a cache / history for
* the next frame or superframe.
float synth_history[MAX_LSPS]; ///< see #excitation_history
/**
* @}
- * @defgroup post_filter Postfilter values
+ *
+ * @name Postfilter values
+ *
* Variables used for postfilter implementation, mostly history for
* smoothing and so on, and context variables for FFT/iFFT.
* @{
}
/**
- * @defgroup postfilter Postfilter functions
+ * @name Postfilter functions
* Postfilter functions (gain control, wiener denoise filter, DC filter,
* kalman smoothening, plus surrounding code to wrap it)
* @{
}
/**
- * @defgroup lsp_dequant LSP dequantization routines
+ * @name LSP dequantization routines
* LSP dequantization routines, for 10/16LSPs and independent/residual coding.
* @note we assume enough bits are available, caller should check.
* lsp10i() consumes 24 bits; lsp10r() consumes an additional 24 bits;
/**
* @}
- * @defgroup aw Pitch-adaptive window coding functions
+ * @name Pitch-adaptive window coding functions
* The next few functions are for pitch-adaptive window coding.
* @{
*/
OBJS-$(CONFIG_ALSA_INDEV) += timefilter.o
OBJS-$(CONFIG_JACK_INDEV) += timefilter.o
+EXAMPLES = metadata
TESTPROGS = timefilter
include $(SRC_PATH)/subdir.mak
struct AVFormatContext;
-/*
- * Public Metadata API.
+/**
+ * @defgroup metadata_api Public Metadata API
+ * @{
* The metadata API allows libavformat to export metadata tags to a client
* application using a sequence of key/value pairs. Like all strings in FFmpeg,
* metadata must be stored as UTF-8 encoded Unicode. Note that metadata
* exported by demuxers isn't checked to be valid UTF-8 in most cases.
* Important concepts to keep in mind:
- * 1. Keys are unique; there can never be 2 tags with the same key. This is
+ * - Keys are unique; there can never be 2 tags with the same key. This is
* also meant semantically, i.e., a demuxer should not knowingly produce
* several keys that are literally different but semantically identical.
* E.g., key=Author5, key=Author6. In this example, all authors must be
* placed in the same tag.
- * 2. Metadata is flat, not hierarchical; there are no subtags. If you
+ * - Metadata is flat, not hierarchical; there are no subtags. If you
* want to store, e.g., the email address of the child of producer Alice
* and actor Bob, that could have key=alice_and_bobs_childs_email_address.
- * 3. Several modifiers can be applied to the tag name. This is done by
+ * - Several modifiers can be applied to the tag name. This is done by
* appending a dash character ('-') and the modifier name in the order
* they appear in the list below -- e.g. foo-eng-sort, not foo-sort-eng.
- * a) language -- a tag whose value is localized for a particular language
+ * - language -- a tag whose value is localized for a particular language
* is appended with the ISO 639-2/B 3-letter language code.
* For example: Author-ger=Michael, Author-eng=Mike
* The original/default language is in the unqualified "Author" tag.
* A demuxer should set a default if it sets any translated tag.
- * b) sorting -- a modified version of a tag that should be used for
+ * - sorting -- a modified version of a tag that should be used for
* sorting will have '-sort' appended. E.g. artist="The Beatles",
* artist-sort="Beatles, The".
*
- * 4. Demuxers attempt to export metadata in a generic format, however tags
+ * - Demuxers attempt to export metadata in a generic format, however tags
* with no generic equivalents are left as they are stored in the container.
* Follows a list of generic tag names:
*
- * album -- name of the set this work belongs to
- * album_artist -- main creator of the set/album, if different from artist.
- * e.g. "Various Artists" for compilation albums.
- * artist -- main creator of the work
- * comment -- any additional description of the file.
- * composer -- who composed the work, if different from artist.
- * copyright -- name of copyright holder.
- * creation_time-- date when the file was created, preferably in ISO 8601.
- * date -- date when the work was created, preferably in ISO 8601.
- * disc -- number of a subset, e.g. disc in a multi-disc collection.
- * encoder -- name/settings of the software/hardware that produced the file.
- * encoded_by -- person/group who created the file.
- * filename -- original name of the file.
- * genre -- <self-evident>.
- * language -- main language in which the work is performed, preferably
- * in ISO 639-2 format. Multiple languages can be specified by
- * separating them with commas.
- * performer -- artist who performed the work, if different from artist.
- * E.g for "Also sprach Zarathustra", artist would be "Richard
- * Strauss" and performer "London Philharmonic Orchestra".
- * publisher -- name of the label/publisher.
- * service_name -- name of the service in broadcasting (channel name).
- * service_provider -- name of the service provider in broadcasting.
- * title -- name of the work.
- * track -- number of this work in the set, can be in form current/total.
- * variant_bitrate -- the total bitrate of the bitrate variant that the current stream is part of
+ @verbatim
+ album -- name of the set this work belongs to
+ album_artist -- main creator of the set/album, if different from artist.
+ e.g. "Various Artists" for compilation albums.
+ artist -- main creator of the work
+ comment -- any additional description of the file.
+ composer -- who composed the work, if different from artist.
+ copyright -- name of copyright holder.
+ creation_time-- date when the file was created, preferably in ISO 8601.
+ date -- date when the work was created, preferably in ISO 8601.
+ disc -- number of a subset, e.g. disc in a multi-disc collection.
+ encoder -- name/settings of the software/hardware that produced the file.
+ encoded_by -- person/group who created the file.
+ filename -- original name of the file.
+ genre -- <self-evident>.
+ language -- main language in which the work is performed, preferably
+ in ISO 639-2 format. Multiple languages can be specified by
+ separating them with commas.
+ performer -- artist who performed the work, if different from artist.
+ E.g for "Also sprach Zarathustra", artist would be "Richard
+ Strauss" and performer "London Philharmonic Orchestra".
+ publisher -- name of the label/publisher.
+ service_name -- name of the service in broadcasting (channel name).
+ service_provider -- name of the service provider in broadcasting.
+ title -- name of the work.
+ track -- number of this work in the set, can be in form current/total.
+ variant_bitrate -- the total bitrate of the bitrate variant that the current stream is part of
+ @endverbatim
+ *
+ * Look in the examples section for an application example how to use the Metadata API.
+ *
+ * @}
*/
#if FF_API_OLD_METADATA2
}
}
-static int avi_sync(AVFormatContext *s)
+static int avi_sync(AVFormatContext *s, int exit_early)
{
AVIContext *avi = s->priv_data;
AVIOContext *pb = s->pb;
if( (st->discard >= AVDISCARD_DEFAULT && size==0)
/*|| (st->discard >= AVDISCARD_NONKEY && !(pkt->flags & AV_PKT_FLAG_KEY))*/ //FIXME needs a little reordering
|| st->discard >= AVDISCARD_ALL){
- ast->frame_offset += get_duration(ast, size);
+ if (!exit_early) {
+ ast->frame_offset += get_duration(ast, size);
+ }
avio_skip(pb, size);
goto start_sync;
}
(d[2] == 'd' && d[3] == 'c') ||
(d[2] == 'w' && d[3] == 'b')*/) {
+ if (exit_early)
+ return 0;
//av_log(s, AV_LOG_DEBUG, "OK\n");
if(d[2]*256+d[3] == ast->prefix)
ast->prefix_count++;
return size;
}
- if ((err = avi_sync(s)) < 0)
+ if ((err = avi_sync(s, 0)) < 0)
return err;
goto resync;
}
int nb_index_entries, i;
AVStream *st;
AVIStream *ast;
- unsigned int index, tag, flags, pos, len;
+ unsigned int index, tag, flags, pos, len, first_packet = 1;
unsigned last_pos= -1;
+ int64_t idx1_pos, first_packet_pos = 0, data_offset = 0;
nb_index_entries = size / 16;
if (nb_index_entries <= 0)
return -1;
+ idx1_pos = avio_tell(pb);
+ avio_seek(pb, avi->movi_list+4, SEEK_SET);
+ if (avi_sync(s, 1) == 0) {
+ first_packet_pos = avio_tell(pb) - 8;
+ }
+ avi->stream_index = -1;
+ avio_seek(pb, idx1_pos, SEEK_SET);
+
/* Read the entries and sort them in each stream component. */
for(i = 0; i < nb_index_entries; i++) {
tag = avio_rl32(pb);
len = avio_rl32(pb);
av_dlog(s, "%d: tag=0x%x flags=0x%x pos=0x%x len=%d/",
i, tag, flags, pos, len);
- if(i==0 && pos > avi->movi_list)
- avi->movi_list= 0; //FIXME better check
- pos += avi->movi_list;
index = ((tag & 0xff) - '0') * 10;
index += ((tag >> 8) & 0xff) - '0';
st = s->streams[index];
ast = st->priv_data;
-#if defined(DEBUG_SEEK)
- av_log(s, AV_LOG_DEBUG, "%d cum_len=%"PRId64"\n", len, ast->cum_len);
-#endif
+ if(first_packet && first_packet_pos && len) {
+ data_offset = first_packet_pos - pos;
+ first_packet = 0;
+ }
+ pos += data_offset;
+
+ av_dlog(s, "%d cum_len=%"PRId64"\n", len, ast->cum_len);
+
if(url_feof(pb))
return -1;
attribute_deprecated int url_poll(URLPollEntry *poll_table, int n, int timeout);
/**
- * @defgroup open_modes URL open modes
+ * @name URL open modes
* The flags argument to url_open and cosins must be one of the following
* constants, optionally ORed with other flags.
* @{
/**
* @defgroup old_url_funcs Old url_* functions
- * @deprecated use the buffered API based on AVIOContext instead
+ * The following functions are deprecated. Use the buffered API based on #AVIOContext instead.
* @{
*/
attribute_deprecated int url_open_protocol (URLContext **puc, struct URLProtocol *up,
/**
* @defgroup old_avio_funcs Old put_/get_*() functions
- * @deprecated use the avio_ -prefixed functions instead.
+ * The following functions are deprecated. Use the "avio_"-prefixed functions instead.
* @{
*/
attribute_deprecated int get_buffer(AVIOContext *s, unsigned char *buf, int size);
/**
* @defgroup old_url_f_funcs Old url_f* functions
- * @deprecated use the avio_ -prefixed functions instead.
+ * The following functions are deprecated, use the "avio_"-prefixed functions instead.
* @{
*/
attribute_deprecated int url_fopen( AVIOContext **s, const char *url, int flags);
int avio_read(AVIOContext *s, unsigned char *buf, int size);
/**
- * @defgroup avio_read Functions for reading from AVIOContext.
+ * @name Functions for reading from AVIOContext
* @{
*
* @note return 0 if EOF, so you cannot use it if EOF handling is
/**
- * @defgroup open_modes URL open modes
+ * @name URL open modes
* The flags argument to avio_open must be one of the following
* constants, optionally ORed with other flags.
* @{
--- /dev/null
+/*
+ * Copyright (c) 2011 Reinhard Tartler
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * @file
+ * @example libavformat/metadata-example.c
+ * Shows how the metadata API can be used in application programs.
+ */
+
+#include <stdio.h>
+
+#include <libavformat/avformat.h>
+#include <libavutil/dict.h>
+
+int main (int argc, char **argv)
+{
+ AVFormatContext *fmt_ctx = NULL;
+ AVDictionaryEntry *tag = NULL;
+ int ret;
+
+ if (argc != 2) {
+ printf("usage: %s <input_file>\n"
+ "example program to demonstrate the use of the libavformat metadata API.\n"
+ "\n", argv[0]);
+ return 1;
+ }
+
+ av_register_all();
+ if ((ret = avformat_open_input(&fmt_ctx, argv[1], NULL, NULL)))
+ return ret;
+
+ while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
+ printf("%s=%s\n", tag->key, tag->value);
+
+ avformat_free_context(fmt_ctx);
+ return 0;
+}
void ff_rtmp_packet_dump(void *ctx, RTMPPacket *p);
/**
- * @defgroup amffuncs functions used to work with AMF format (which is also used in .flv)
+ * @name Functions used to work with the AMF format (which is also used in .flv)
* @see amf_* funcs in libavformat/flvdec.c
* @{
*/
err = AVERROR(ENOMEM);
goto fail;
}
- ic->pb = pb;
+ if (pb && fmt && fmt->flags & AVFMT_NOFILE)
+ av_log(ic, AV_LOG_WARNING, "Custom AVIOContext makes no sense and "
+ "will be ignored with AVFMT_NOFILE format.\n");
+ else
+ ic->pb = pb;
- err = avformat_open_input(ic_ptr, filename, fmt, &opts);
+ err = avformat_open_input(&ic, filename, fmt, &opts);
+ ic->pb = ic->pb ? ic->pb : pb; // don't leak custom pb if it wasn't set above
+ *ic_ptr = ic;
fail:
av_dict_free(&opts);
return err;
#include <stdint.h>
-/** @defgroup errflags Error flags returned by av_lzo1x_decode
+/** @name Error flags returned by av_lzo1x_decode
* \{ */
//! end of the input buffer reached before decoding finished
#define AV_LZO_INPUT_DEPLETED 1
OSDN Git Service
