* decavsubInit *********************************************************************** * Init function for libav subtitle decoding that may be wrapped * by HB subtitle decoder **********************************************************************/
| 47 | * by HB subtitle decoder |
| 48 | **********************************************************************/ |
| 49 | hb_decavsub_context_t * decavsubInit( hb_work_object_t * w, hb_job_t * job ) |
| 50 | { |
| 51 | hb_decavsub_context_t * ctx = calloc( 1, sizeof( hb_decavsub_context_t ) ); |
| 52 | |
| 53 | if (ctx == NULL) |
| 54 | { |
| 55 | hb_error("decavsubInit: calloc ctx failed"); |
| 56 | return NULL; |
| 57 | } |
| 58 | ctx->seen_forced_sub = 0; |
| 59 | ctx->last_pts = AV_NOPTS_VALUE; |
| 60 | ctx->job = job; |
| 61 | ctx->subtitle = w->subtitle; |
| 62 | |
| 63 | const AVCodec * codec = avcodec_find_decoder(ctx->subtitle->codec_param); |
| 64 | if (codec == NULL) |
| 65 | { |
| 66 | hb_error("encavsubInit: avcodec_find_decoder failed"); |
| 67 | goto fail; |
| 68 | } |
| 69 | AVCodecContext * context = avcodec_alloc_context3(codec); |
| 70 | if (context == NULL) |
| 71 | { |
| 72 | hb_error("decavsubInit: avcodec_alloc_context3 failed"); |
| 73 | goto fail; |
| 74 | } |
| 75 | |
| 76 | ctx->context = context; |
| 77 | context->codec = codec; |
| 78 | context->pkt_timebase.num = ctx->subtitle->timebase.num; |
| 79 | context->pkt_timebase.den = ctx->subtitle->timebase.den; |
| 80 | |
| 81 | if (ctx->subtitle->extradata && ctx->subtitle->extradata->size) |
| 82 | { |
| 83 | context->extradata = av_malloc(ctx->subtitle->extradata->size); |
| 84 | if (context->extradata == NULL) |
| 85 | { |
| 86 | hb_error("decavsubInit: av_malloc extradata failed"); |
| 87 | goto fail; |
| 88 | } |
| 89 | memcpy(context->extradata, |
| 90 | ctx->subtitle->extradata->bytes, |
| 91 | ctx->subtitle->extradata->size); |
| 92 | context->extradata_size = ctx->subtitle->extradata->size; |
| 93 | } |
| 94 | |
| 95 | // Set decoder opts... |
| 96 | AVDictionary * av_opts = NULL; |
| 97 | if (ctx->subtitle->codec_param == AV_CODEC_ID_EIA_608) |
| 98 | { |
| 99 | av_dict_set( &av_opts, "data_field", "first", 0 ); |
| 100 | av_dict_set( &av_opts, "real_time", "1", 0 ); |
| 101 | } |
| 102 | else if (ctx->subtitle->codec_param == AV_CODEC_ID_MOV_TEXT) |
| 103 | { |
| 104 | char * width = hb_strdup_printf("%d", job->title->geometry.width); |
| 105 | char * height = hb_strdup_printf("%d", job->title->geometry.height); |
| 106 | av_dict_set( &av_opts, "width", width, 0 ); |
no test coverage detected