diff options
Diffstat (limited to 'libavutil')
-rw-r--r-- | libavutil/mips/intreadwrite.h | 66 | ||||
-rw-r--r-- | libavutil/samplefmt.c | 38 | ||||
-rw-r--r-- | libavutil/samplefmt.h | 27 |
3 files changed, 72 insertions, 59 deletions
diff --git a/libavutil/mips/intreadwrite.h b/libavutil/mips/intreadwrite.h index cd4a9a9a67..9ba0491372 100644 --- a/libavutil/mips/intreadwrite.h +++ b/libavutil/mips/intreadwrite.h @@ -24,75 +24,23 @@ #include <stdint.h> #include "config.h" -#if HAVE_INLINE_ASM +#if ARCH_MIPS64 && HAVE_INLINE_ASM #define AV_RN32 AV_RN32 static av_always_inline uint32_t AV_RN32(const void *p) { + struct __attribute__((packed)) u32 { uint32_t v; }; + const uint8_t *q = p; + const struct u32 *pl = (const struct u32 *)(q + 3 * !HAVE_BIGENDIAN); + const struct u32 *pr = (const struct u32 *)(q + 3 * HAVE_BIGENDIAN); uint32_t v; __asm__ ("lwl %0, %1 \n\t" "lwr %0, %2 \n\t" : "=&r"(v) - : "m"(*(const uint32_t *)((const uint8_t *)p+3*!HAVE_BIGENDIAN)), - "m"(*(const uint32_t *)((const uint8_t *)p+3*HAVE_BIGENDIAN))); + : "m"(*pl), "m"(*pr)); return v; } -#define AV_WN32 AV_WN32 -static av_always_inline void AV_WN32(void *p, uint32_t v) -{ - __asm__ ("swl %2, %0 \n\t" - "swr %2, %1 \n\t" - : "=m"(*(uint32_t *)((uint8_t *)p+3*!HAVE_BIGENDIAN)), - "=m"(*(uint32_t *)((uint8_t *)p+3*HAVE_BIGENDIAN)) - : "r"(v)); -} - -#if ARCH_MIPS64 - -#define AV_RN64 AV_RN64 -static av_always_inline uint64_t AV_RN64(const void *p) -{ - uint64_t v; - __asm__ ("ldl %0, %1 \n\t" - "ldr %0, %2 \n\t" - : "=&r"(v) - : "m"(*(const uint64_t *)((const uint8_t *)p+7*!HAVE_BIGENDIAN)), - "m"(*(const uint64_t *)((const uint8_t *)p+7*HAVE_BIGENDIAN))); - return v; -} - -#define AV_WN64 AV_WN64 -static av_always_inline void AV_WN64(void *p, uint64_t v) -{ - __asm__ ("sdl %2, %0 \n\t" - "sdr %2, %1 \n\t" - : "=m"(*(uint64_t *)((uint8_t *)p+7*!HAVE_BIGENDIAN)), - "=m"(*(uint64_t *)((uint8_t *)p+7*HAVE_BIGENDIAN)) - : "r"(v)); -} - -#else - -#define AV_RN64 AV_RN64 -static av_always_inline uint64_t AV_RN64(const void *p) -{ - union { uint64_t v; uint32_t hl[2]; } v; - v.hl[0] = AV_RN32(p); - v.hl[1] = AV_RN32((const uint8_t *)p + 4); - return v.v; -} - -#define AV_WN64 AV_WN64 -static av_always_inline void AV_WN64(void *p, uint64_t v) -{ - union { uint64_t v; uint32_t hl[2]; } vv = { v }; - AV_WN32(p, vv.hl[0]); - AV_WN32((uint8_t *)p + 4, vv.hl[1]); -} - -#endif /* ARCH_MIPS64 */ - -#endif /* HAVE_INLINE_ASM */ +#endif /* ARCH_MIPS64 && HAVE_INLINE_ASM */ #endif /* AVUTIL_MIPS_INTREADWRITE_H */ diff --git a/libavutil/samplefmt.c b/libavutil/samplefmt.c index 560c7f5cd5..ae192ff3d4 100644 --- a/libavutil/samplefmt.c +++ b/libavutil/samplefmt.c @@ -194,3 +194,41 @@ int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels, } return 0; } + +int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset, + int src_offset, int nb_samples, int nb_channels, + enum AVSampleFormat sample_fmt) +{ + int planar = av_sample_fmt_is_planar(sample_fmt); + int planes = planar ? nb_channels : 1; + int block_align = av_get_bytes_per_sample(sample_fmt) * (planar ? 1 : nb_channels); + int data_size = nb_samples * block_align; + int i; + + dst_offset *= block_align; + src_offset *= block_align; + + for (i = 0; i < planes; i++) + memcpy(dst[i] + dst_offset, src[i] + src_offset, data_size); + + return 0; +} + +int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples, + int nb_channels, enum AVSampleFormat sample_fmt) +{ + int planar = av_sample_fmt_is_planar(sample_fmt); + int planes = planar ? nb_channels : 1; + int block_align = av_get_bytes_per_sample(sample_fmt) * (planar ? 1 : nb_channels); + int data_size = nb_samples * block_align; + int fill_char = (sample_fmt == AV_SAMPLE_FMT_U8 || + sample_fmt == AV_SAMPLE_FMT_U8P) ? 0x80 : 0x00; + int i; + + offset *= block_align; + + for (i = 0; i < planes; i++) + memset(audio_data[i] + offset, fill_char, data_size); + + return 0; +} diff --git a/libavutil/samplefmt.h b/libavutil/samplefmt.h index fa55efe78a..4ce606d975 100644 --- a/libavutil/samplefmt.h +++ b/libavutil/samplefmt.h @@ -202,4 +202,31 @@ int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align); +/** + * Copy samples from src to dst. + * + * @param dst destination array of pointers to data planes + * @param src source array of pointers to data planes + * @param dst_offset offset in samples at which the data will be written to dst + * @param src_offset offset in samples at which the data will be read from src + * @param nb_samples number of samples to be copied + * @param nb_channels number of audio channels + * @param sample_fmt audio sample format + */ +int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset, + int src_offset, int nb_samples, int nb_channels, + enum AVSampleFormat sample_fmt); + +/** + * Fill an audio buffer with silence. + * + * @param audio_data array of pointers to data planes + * @param offset offset in samples at which to start filling + * @param nb_samples number of samples to fill + * @param nb_channels number of audio channels + * @param sample_fmt audio sample format + */ +int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples, + int nb_channels, enum AVSampleFormat sample_fmt); + #endif /* AVUTIL_SAMPLEFMT_H */ |