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[xcode] Add OPUS encoding profile for RTP Chromecasting

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This commit is contained in:
ejurgensen
2019-01-10 10:52:56 +01:00
parent 8e474dfd7f
commit d850c2e691
3 changed files with 51 additions and 21 deletions
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17
src/transcode.h
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@@ -14,6 +14,8 @@ enum transcode_profile
XCODE_PCM16_HEADER,
// Transcodes the best audio stream into MP3
XCODE_MP3,
// Transcodes the best audio stream into OPUS
XCODE_OPUS,
// Transcodes the best video stream into JPEG/PNG
XCODE_JPEG,
XCODE_PNG,
@@ -23,6 +25,8 @@ struct decode_ctx;
struct encode_ctx;
struct transcode_ctx;
typedef void transcode_frame;
// Setting up
struct decode_ctx *
transcode_decode_setup(enum transcode_profile profile, enum data_kind data_kind, const char *path, struct evbuffer *evbuf, uint32_t song_length);
@@ -60,7 +64,7 @@ transcode_cleanup(struct transcode_ctx **ctx);
* @return Positive if OK, negative if error, 0 if EOF
*/
int
transcode_decode(void **frame, struct decode_ctx *ctx);
transcode_decode(transcode_frame **frame, struct decode_ctx *ctx);
/* Encodes and remuxes a frame. Also resamples if needed.
*
@@ -71,7 +75,7 @@ transcode_decode(void **frame, struct decode_ctx *ctx);
* @return Bytes added if OK, negative if error
*/
int
transcode_encode(struct evbuffer *evbuf, struct encode_ctx *ctx, void *frame, int eof);
transcode_encode(struct evbuffer *evbuf, struct encode_ctx *ctx, transcode_frame *frame, int eof);
/* Demuxes, decodes, encodes and remuxes from the input.
*
@@ -87,17 +91,18 @@ int
transcode(struct evbuffer *evbuf, int *icy_timer, struct transcode_ctx *ctx, int want_bytes);
/* Converts a buffer with raw data to a frame that can be passed directly to the
* transcode_encode() function
* transcode_encode() function. It does not copy, so if you free the data the
* frame will become invalid.
*
* @in profile Tells the function what kind of frame to create
* @in data Buffer with raw data
* @in size Size of buffer
* @return Opaque pointer to frame if OK, otherwise NULL
*/
void *
transcode_frame_new(enum transcode_profile profile, uint8_t *data, size_t size);
transcode_frame *
transcode_frame_new(enum transcode_profile profile, void *data, size_t size);
void
transcode_frame_free(void *frame);
transcode_frame_free(transcode_frame *frame);
/* Seek to the specified position - next transcode() will return this packet
*