| 1 | /* Copyright (C) 2010-2020 The RetroArch team |
| 2 | * |
| 3 | * --------------------------------------------------------------------------------------- |
| 4 | * The following license statement only applies to this file (trans_stream.c). |
| 5 | * --------------------------------------------------------------------------------------- |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, |
| 8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), |
| 9 | * to deal in the Software without restriction, including without limitation the rights to |
| 10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, |
| 11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, |
| 16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #include <streams/trans_stream.h> |
| 24 | |
| 25 | /** |
| 26 | * trans_stream_trans_full: |
| 27 | * @data : (optional) existing stream data, or a target |
| 28 | * for the new stream data to be saved |
| 29 | * @in : input data |
| 30 | * @in_size : input size |
| 31 | * @out : output data |
| 32 | * @out_size : output size |
| 33 | * @error : (optional) output for error code |
| 34 | * |
| 35 | * Perform a full transcoding from a source to a destination. |
| 36 | */ |
| 37 | bool trans_stream_trans_full( |
| 38 | struct trans_stream_backend *backend, void **data, |
| 39 | const uint8_t *in, uint32_t in_size, |
| 40 | uint8_t *out, uint32_t out_size, |
| 41 | enum trans_stream_error *error) |
| 42 | { |
| 43 | void *rdata; |
| 44 | bool ret; |
| 45 | uint32_t rd, wn; |
| 46 | |
| 47 | if (data && *data) |
| 48 | rdata = *data; |
| 49 | else |
| 50 | { |
| 51 | if (!(rdata = backend->stream_new())) |
| 52 | { |
| 53 | if (error) |
| 54 | *error = TRANS_STREAM_ERROR_ALLOCATION_FAILURE; |
| 55 | return false; |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | backend->set_in(rdata, in, in_size); |
| 60 | backend->set_out(rdata, out, out_size); |
| 61 | ret = backend->trans(rdata, true, &rd, &wn, error); |
| 62 | |
| 63 | if (data) |
| 64 | *data = rdata; |
| 65 | else |
| 66 | backend->stream_free(rdata); |
| 67 | |
| 68 | return ret; |
| 69 | } |
| 70 | |
| 71 | const struct trans_stream_backend* trans_stream_get_zlib_deflate_backend(void) |
| 72 | { |
| 73 | #if HAVE_ZLIB |
| 74 | return &zlib_deflate_backend; |
| 75 | #else |
| 76 | return NULL; |
| 77 | #endif |
| 78 | } |
| 79 | |
| 80 | const struct trans_stream_backend* trans_stream_get_zlib_inflate_backend(void) |
| 81 | { |
| 82 | #if HAVE_ZLIB |
| 83 | return &zlib_inflate_backend; |
| 84 | #else |
| 85 | return NULL; |
| 86 | #endif |
| 87 | } |
| 88 | |
| 89 | const struct trans_stream_backend* trans_stream_get_pipe_backend(void) |
| 90 | { |
| 91 | return &pipe_backend; |
| 92 | } |