diff options
author | Michael Niedermayer <michaelni@gmx.at> | 2011-12-03 05:08:55 +0400 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2011-12-03 06:00:30 +0400 |
commit | e4de71677f3adeac0f74b89ac8df5d417364df2c (patch) | |
tree | 4792dd8d85d24f0f4eaddabb65f6044727907daa /libavcodec/libgsm.c | |
parent | 12804348f5babf56a315fa01751eea1ffdddf98a (diff) | |
parent | d268b79e3436107c11ee8bcdf9f3645368bb3fcd (diff) |
Merge remote-tracking branch 'qatar/master'
* qatar/master:
aac_latm: reconfigure decoder on audio specific config changes
latmdec: fix audio specific config parsing
Add avcodec_decode_audio4().
avcodec: change number of plane pointers from 4 to 8 at next major bump.
Update developers documentation with coding conventions.
svq1dec: avoid undefined get_bits(0) call
ARM: h264dsp_neon cosmetics
ARM: make some NEON macros reusable
Do not memcpy raw video frames when using null muxer
fate: update asf seektest
vp8: flush buffers on size changes.
doc: improve general documentation for MacOSX
asf: use packet dts as approximation of pts
asf: do not call av_read_frame
rtsp: Initialize the media_type_mask in the rtp guessing demuxer
Cleaned up alacenc.c
Conflicts:
doc/APIchanges
doc/developer.texi
libavcodec/8svx.c
libavcodec/aacdec.c
libavcodec/ac3dec.c
libavcodec/avcodec.h
libavcodec/nellymoserdec.c
libavcodec/tta.c
libavcodec/utils.c
libavcodec/version.h
libavcodec/wmadec.c
libavformat/asfdec.c
tests/ref/seek/lavf_asf
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/libgsm.c')
-rw-r--r-- | libavcodec/libgsm.c | 58 |
1 files changed, 40 insertions, 18 deletions
diff --git a/libavcodec/libgsm.c b/libavcodec/libgsm.c index 95919a4c43..9ba9da9e3f 100644 --- a/libavcodec/libgsm.c +++ b/libavcodec/libgsm.c @@ -124,7 +124,14 @@ AVCodec ff_libgsm_ms_encoder = { .long_name = NULL_IF_CONFIG_SMALL("libgsm GSM Microsoft variant"), }; +typedef struct LibGSMDecodeContext { + AVFrame frame; + struct gsm_state *state; +} LibGSMDecodeContext; + static av_cold int libgsm_decode_init(AVCodecContext *avctx) { + LibGSMDecodeContext *s = avctx->priv_data; + if (avctx->channels > 1) { av_log(avctx, AV_LOG_ERROR, "Mono required for GSM, got %d channels\n", avctx->channels); @@ -139,7 +146,7 @@ static av_cold int libgsm_decode_init(AVCodecContext *avctx) { avctx->sample_fmt = AV_SAMPLE_FMT_S16; - avctx->priv_data = gsm_create(); + s->state = gsm_create(); switch(avctx->codec_id) { case CODEC_ID_GSM: @@ -154,59 +161,72 @@ static av_cold int libgsm_decode_init(AVCodecContext *avctx) { } } + avcodec_get_frame_defaults(&s->frame); + avctx->coded_frame = &s->frame; + return 0; } static av_cold int libgsm_decode_close(AVCodecContext *avctx) { - gsm_destroy(avctx->priv_data); - avctx->priv_data = NULL; + LibGSMDecodeContext *s = avctx->priv_data; + + gsm_destroy(s->state); + s->state = NULL; return 0; } -static int libgsm_decode_frame(AVCodecContext *avctx, - void *data, int *data_size, - AVPacket *avpkt) { +static int libgsm_decode_frame(AVCodecContext *avctx, void *data, + int *got_frame_ptr, AVPacket *avpkt) +{ int i, ret; - struct gsm_state *s = avctx->priv_data; + LibGSMDecodeContext *s = avctx->priv_data; uint8_t *buf = avpkt->data; int buf_size = avpkt->size; - int16_t *samples = data; - int out_size = avctx->frame_size * av_get_bytes_per_sample(avctx->sample_fmt); - - if (*data_size < out_size) { - av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n"); - return AVERROR(EINVAL); - } + int16_t *samples; if (buf_size < avctx->block_align) { av_log(avctx, AV_LOG_ERROR, "Packet is too small\n"); return AVERROR_INVALIDDATA; } + /* get output buffer */ + s->frame.nb_samples = avctx->frame_size; + if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) { + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return ret; + } + samples = (int16_t *)s->frame.data[0]; + for (i = 0; i < avctx->frame_size / GSM_FRAME_SIZE; i++) { - if ((ret = gsm_decode(s, buf, samples)) < 0) + if ((ret = gsm_decode(s->state, buf, samples)) < 0) return -1; buf += GSM_BLOCK_SIZE; samples += GSM_FRAME_SIZE; } - *data_size = out_size; + *got_frame_ptr = 1; + *(AVFrame *)data = s->frame; + return avctx->block_align; } static void libgsm_flush(AVCodecContext *avctx) { - gsm_destroy(avctx->priv_data); - avctx->priv_data = gsm_create(); + LibGSMDecodeContext *s = avctx->priv_data; + + gsm_destroy(s->state); + s->state = gsm_create(); } AVCodec ff_libgsm_decoder = { .name = "libgsm", .type = AVMEDIA_TYPE_AUDIO, .id = CODEC_ID_GSM, + .priv_data_size = sizeof(LibGSMDecodeContext), .init = libgsm_decode_init, .close = libgsm_decode_close, .decode = libgsm_decode_frame, .flush = libgsm_flush, + .capabilities = CODEC_CAP_DR1, .long_name = NULL_IF_CONFIG_SMALL("libgsm GSM"), }; @@ -214,9 +234,11 @@ AVCodec ff_libgsm_ms_decoder = { .name = "libgsm_ms", .type = AVMEDIA_TYPE_AUDIO, .id = CODEC_ID_GSM_MS, + .priv_data_size = sizeof(LibGSMDecodeContext), .init = libgsm_decode_init, .close = libgsm_decode_close, .decode = libgsm_decode_frame, .flush = libgsm_flush, + .capabilities = CODEC_CAP_DR1, .long_name = NULL_IF_CONFIG_SMALL("libgsm GSM Microsoft variant"), }; |