*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_H
*/
-#ifdef __cplusplus
-extern "C" {
-#endif
-
#include "avutil.h"
#include <sys/types.h> /* size_t */
#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
/**
+ * Identifies the syntax and semantics of the bitstream.
+ * The principle is roughly:
+ * Two decoders with the same ID can decode the same streams.
+ * Two encoders with the same ID can encode compatible streams.
+ * There may be slight deviations from the principle due to implementation
+ * details.
*
* If you add a codec ID to this list, add it so that
* 1. no value of a existing codec ID changes (that would break ABI),
CODEC_ID_C93,
CODEC_ID_BETHSOFTVID,
CODEC_ID_PTX,
+ CODEC_ID_TXD,
/* various PCM "codecs" */
CODEC_ID_PCM_S16LE= 0x10000,
unsigned dsp_mask;
#define FF_MM_FORCE 0x80000000 /* Force usage of selected flags (OR) */
/* lower 16 bits - CPU features */
-#ifdef HAVE_MMX
#define FF_MM_MMX 0x0001 /* standard MMX */
#define FF_MM_3DNOW 0x0004 /* AMD 3DNOW */
#define FF_MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
#define FF_MM_SSE 0x0008 /* SSE functions */
#define FF_MM_SSE2 0x0010 /* PIV SSE2 functions */
#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
-#endif /* HAVE_MMX */
-#ifdef HAVE_IWMMXT
+#define FF_MM_SSE3 0x0040 /* Prescott SSE3 functions */
+#define FF_MM_SSSE3 0x0080 /* Conroe SSSE3 functions */
#define FF_MM_IWMMXT 0x0100 /* XScale IWMMXT */
-#endif /* HAVE_IWMMXT */
/**
* bits per sample/pixel from the demuxer (needed for huffyuv).
* AVCodec.
*/
typedef struct AVCodec {
+ /**
+ * Name of the codec implementation.
+ * The name is globally unique among encoders and among decoders (but an
+ * encoder and a decoder can share the same name).
+ * This is the primary way to find a codec from the user perspective.
+ */
const char *name;
enum CodecType type;
enum CodecID id;
AVSubtitleRect *rects;
} AVSubtitle;
-extern AVCodec ac3_encoder;
-extern AVCodec asv1_encoder;
-extern AVCodec asv2_encoder;
-extern AVCodec bmp_encoder;
-extern AVCodec dvvideo_encoder;
-extern AVCodec ffv1_encoder;
-extern AVCodec ffvhuff_encoder;
-extern AVCodec flac_encoder;
-extern AVCodec flashsv_encoder;
-extern AVCodec flv_encoder;
-extern AVCodec gif_encoder;
-extern AVCodec h261_encoder;
-extern AVCodec h263_encoder;
-extern AVCodec h263p_encoder;
-extern AVCodec h264_encoder;
-extern AVCodec huffyuv_encoder;
-extern AVCodec jpegls_encoder;
-extern AVCodec ljpeg_encoder;
-extern AVCodec mdec_encoder;
-extern AVCodec mjpeg_encoder;
-extern AVCodec mp2_encoder;
-extern AVCodec mpeg1video_encoder;
-extern AVCodec mpeg2video_encoder;
-extern AVCodec mpeg4_encoder;
-extern AVCodec msmpeg4v1_encoder;
-extern AVCodec msmpeg4v2_encoder;
-extern AVCodec msmpeg4v3_encoder;
-extern AVCodec pam_encoder;
-extern AVCodec pbm_encoder;
-extern AVCodec pgm_encoder;
-extern AVCodec pgmyuv_encoder;
-extern AVCodec png_encoder;
-extern AVCodec ppm_encoder;
-extern AVCodec rv10_encoder;
-extern AVCodec rv20_encoder;
-extern AVCodec sgi_encoder;
-extern AVCodec snow_encoder;
-extern AVCodec sonic_encoder;
-extern AVCodec sonic_ls_encoder;
-extern AVCodec svq1_encoder;
-extern AVCodec targa_encoder;
-extern AVCodec tiff_encoder;
-extern AVCodec vcr1_encoder;
-extern AVCodec vorbis_encoder;
-extern AVCodec wmav1_encoder;
-extern AVCodec wmav2_encoder;
-extern AVCodec wmv1_encoder;
-extern AVCodec wmv2_encoder;
-extern AVCodec zmbv_encoder;
-
-extern AVCodec aasc_decoder;
-extern AVCodec alac_decoder;
-extern AVCodec asv1_decoder;
-extern AVCodec asv2_decoder;
-extern AVCodec atrac3_decoder;
-extern AVCodec avs_decoder;
-extern AVCodec bethsoftvid_decoder;
-extern AVCodec bmp_decoder;
-extern AVCodec c93_decoder;
-extern AVCodec cavs_decoder;
-extern AVCodec cinepak_decoder;
-extern AVCodec cljr_decoder;
-extern AVCodec cook_decoder;
-extern AVCodec cscd_decoder;
-extern AVCodec cyuv_decoder;
-extern AVCodec dca_decoder;
-extern AVCodec dnxhd_decoder;
-extern AVCodec dsicinaudio_decoder;
-extern AVCodec dsicinvideo_decoder;
-extern AVCodec dvvideo_decoder;
-extern AVCodec dxa_decoder;
-extern AVCodec eightbps_decoder;
-extern AVCodec ffv1_decoder;
-extern AVCodec ffvhuff_decoder;
-extern AVCodec flac_decoder;
-extern AVCodec flashsv_decoder;
-extern AVCodec flic_decoder;
-extern AVCodec flv_decoder;
-extern AVCodec fourxm_decoder;
-extern AVCodec fraps_decoder;
-extern AVCodec gif_decoder;
-extern AVCodec h261_decoder;
-extern AVCodec h263_decoder;
-extern AVCodec h263i_decoder;
-extern AVCodec h264_decoder;
-extern AVCodec huffyuv_decoder;
-extern AVCodec idcin_decoder;
-extern AVCodec imc_decoder;
-extern AVCodec indeo2_decoder;
-extern AVCodec indeo3_decoder;
-extern AVCodec interplay_dpcm_decoder;
-extern AVCodec interplay_video_decoder;
-extern AVCodec kmvc_decoder;
-extern AVCodec loco_decoder;
-extern AVCodec mace3_decoder;
-extern AVCodec mace6_decoder;
-extern AVCodec mdec_decoder;
-extern AVCodec mjpeg_decoder;
-extern AVCodec mjpegb_decoder;
-extern AVCodec mmvideo_decoder;
-extern AVCodec mp2_decoder;
-extern AVCodec mp3_decoder;
-extern AVCodec mp3adu_decoder;
-extern AVCodec mp3on4_decoder;
-extern AVCodec mpc7_decoder;
-extern AVCodec mpeg1video_decoder;
-extern AVCodec mpeg2video_decoder;
-extern AVCodec mpeg4_decoder;
-extern AVCodec mpeg_xvmc_decoder;
-extern AVCodec mpegvideo_decoder;
-extern AVCodec msmpeg4v1_decoder;
-extern AVCodec msmpeg4v2_decoder;
-extern AVCodec msmpeg4v3_decoder;
-extern AVCodec msrle_decoder;
-extern AVCodec msvideo1_decoder;
-extern AVCodec mszh_decoder;
-extern AVCodec nuv_decoder;
-extern AVCodec png_decoder;
-extern AVCodec ptx_decoder;
-extern AVCodec qdm2_decoder;
-extern AVCodec qdraw_decoder;
-extern AVCodec qpeg_decoder;
-extern AVCodec qtrle_decoder;
-extern AVCodec ra_144_decoder;
-extern AVCodec ra_288_decoder;
-extern AVCodec roq_decoder;
-extern AVCodec roq_dpcm_decoder;
-extern AVCodec rpza_decoder;
-extern AVCodec rv10_decoder;
-extern AVCodec rv20_decoder;
-extern AVCodec rv30_decoder;
-extern AVCodec rv40_decoder;
-extern AVCodec sgi_decoder;
-extern AVCodec shorten_decoder;
-extern AVCodec smackaud_decoder;
-extern AVCodec smacker_decoder;
-extern AVCodec smc_decoder;
-extern AVCodec snow_decoder;
-extern AVCodec sol_dpcm_decoder;
-extern AVCodec sonic_decoder;
-extern AVCodec sp5x_decoder;
-extern AVCodec svq1_decoder;
-extern AVCodec svq3_decoder;
-extern AVCodec targa_decoder;
-extern AVCodec theora_decoder;
-extern AVCodec thp_decoder;
-extern AVCodec tiertexseqvideo_decoder;
-extern AVCodec tiff_decoder;
-extern AVCodec truemotion1_decoder;
-extern AVCodec truemotion2_decoder;
-extern AVCodec truespeech_decoder;
-extern AVCodec tscc_decoder;
-extern AVCodec tta_decoder;
-extern AVCodec ulti_decoder;
-extern AVCodec vc1_decoder;
-extern AVCodec vcr1_decoder;
-extern AVCodec vmdaudio_decoder;
-extern AVCodec vmdvideo_decoder;
-extern AVCodec vmnc_decoder;
-extern AVCodec vorbis_decoder;
-extern AVCodec vp3_decoder;
-extern AVCodec vp5_decoder;
-extern AVCodec vp6_decoder;
-extern AVCodec vp6f_decoder;
-extern AVCodec vqa_decoder;
-extern AVCodec wavpack_decoder;
-extern AVCodec wmav1_decoder;
-extern AVCodec wmav2_decoder;
-extern AVCodec wmv1_decoder;
-extern AVCodec wmv2_decoder;
-extern AVCodec wmv3_decoder;
-extern AVCodec wnv1_decoder;
-extern AVCodec ws_snd1_decoder;
-extern AVCodec xan_dpcm_decoder;
-extern AVCodec xan_wc3_decoder;
-extern AVCodec xl_decoder;
-extern AVCodec zmbv_decoder;
-
-/* PCM codecs */
-#define PCM_CODEC(id, name) \
-extern AVCodec name ## _decoder; \
-extern AVCodec name ## _encoder
-
-PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
-PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
-PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
-PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
-PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
-PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
-PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
-PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
-PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
-PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
-PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
-PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
-PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
-PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
-PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
-PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
-PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
-
-/* ADPCM codecs */
-
-PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
-PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
-PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
-PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
-PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
-PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
-PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
-PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
-PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
-PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
-PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
-PCM_CODEC(CODEC_ID_ADPCM_SBPRO_2, adpcm_sbpro_2);
-PCM_CODEC(CODEC_ID_ADPCM_SBPRO_3, adpcm_sbpro_3);
-PCM_CODEC(CODEC_ID_ADPCM_SBPRO_4, adpcm_sbpro_4);
-PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
-PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
-PCM_CODEC(CODEC_ID_ADPCM_THP, adpcm_thp);
-PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
-PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
-
-#undef PCM_CODEC
-
-/* dummy raw video codec */
-extern AVCodec rawvideo_decoder;
-extern AVCodec rawvideo_encoder;
-
-/* the following codecs use external libs */
-extern AVCodec aac_decoder;
-extern AVCodec amr_nb_decoder;
-extern AVCodec amr_nb_encoder;
-extern AVCodec amr_wb_decoder;
-extern AVCodec amr_wb_encoder;
-extern AVCodec faac_encoder;
-extern AVCodec liba52_decoder;
-extern AVCodec libdts_decoder;
-extern AVCodec libgsm_decoder;
-extern AVCodec libgsm_encoder;
-extern AVCodec libgsm_ms_decoder;
-extern AVCodec libgsm_ms_encoder;
-extern AVCodec libtheora_encoder;
-extern AVCodec mp3lame_encoder;
-extern AVCodec mpeg4aac_decoder;
-extern AVCodec oggvorbis_decoder;
-extern AVCodec oggvorbis_encoder;
-extern AVCodec x264_encoder;
-extern AVCodec xvid_encoder;
-extern AVCodec zlib_decoder;
-extern AVCodec zlib_encoder;
-
-/* subtitles */
-extern AVCodec dvbsub_decoder;
-extern AVCodec dvbsub_encoder;
-extern AVCodec dvdsub_decoder;
-extern AVCodec dvdsub_encoder;
/* resample.c */
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
int has_alpha, int *loss_ptr);
+
+/**
+ * Print in buf the string corresponding to the pixel format with
+ * number pix_fmt, or an header if pix_fmt is negative.
+ *
+ * @param buf[in] the buffer where to write the string
+ * @param buf_size[in] the size of buf
+ * @param pix_fmt[in] the number of the pixel format to print the corresponding info string, or
+ * a negative value to print the corresponding header.
+ * Meaningful values for obtaining a pixel format info vary from 0 to PIX_FMT_NB -1.
+ */
+void avcodec_pix_fmt_string (char *buf, int buf_size, int pix_fmt);
+
#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */
#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */
* @warning This function is not thread safe!
*
* @code
+ * avcodec_register_all();
* codec = avcodec_find_decoder(CODEC_ID_H264);
* if (!codec)
* exit(1);
int (*parser_init)(AVCodecParserContext *s);
int (*parser_parse)(AVCodecParserContext *s,
AVCodecContext *avctx,
- uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t **poutbuf, int *poutbuf_size,
const uint8_t *buf, int buf_size);
void (*parser_close)(AVCodecParserContext *s);
int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
+/**
+ * Parses \p str and put in \p width_ptr and \p height_ptr the detected values.
+ *
+ * @return 0 in case of a successful parsing, a negative value otherwise
+ * @param[in] str the string to parse: it has to be a string in the format
+ * <width>x<height> or a valid video frame size abbreviation.
+ * @param[in,out] width_ptr pointer to the variable which will contain the detected
+ * frame width value
+ * @param[in,out] height_ptr pointer to the variable which will contain the detected
+ * frame height value
+ */
+int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str);
+
+/**
+ * Parses \p str and put in \p frame_rate the detected values.
+ *
+ * @return 0 in case of a successful parsing, a negative value otherwise
+ * @param[in] str the string to parse: it has to be a string in the format
+ * <frame_rate_nom>/<frame_rate_den>, a float number or a valid video rate abbreviation
+ * @param[in,out] frame_rate pointer to the AVRational which will contain the detected
+ * frame rate
+ */
+int av_parse_video_frame_rate(AVRational *frame_rate, const char *str);
+
/* error handling */
#if EINVAL > 0
#define AVERROR(e) (-(e)) /**< Returns a negative error code from a POSIX error code, to return from library functions. */
#define AVERROR_NOMEM AVERROR(ENOMEM) /**< not enough memory */
#define AVERROR_NOFMT AVERROR(EILSEQ) /**< unknown format */
#define AVERROR_NOTSUPP AVERROR(ENOSYS) /**< Operation not supported. */
-
-#ifdef __cplusplus
-}
-#endif
+#define AVERROR_NOENT AVERROR(ENOENT) /**< No such file or directory. */
#endif /* AVCODEC_H */
projects / ffmpeg / blobdiff