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Mon, 11 Oct 2021 04:50:59 +0000 From: Soft Works To: "ffmpeg-devel@ffmpeg.org" Thread-Topic: [PATCH v13 06/14] avfilter/sbuffer: Add sbuffersrc and sbuffersink filters Thread-Index: AQHXvluWAMJmCZMSiEqUqVS+z5amow== Date: Mon, 11 Oct 2021 04:50:59 +0000 Message-ID: References: <41c4d8049ad6a90ab6a8e29955aae8f39d1000ec.1633926637.git.softworkz@hotmail.com> <669100dbb5e7bda1dfc9e8aa8cb7eaf8c6661ec4.1633926637.git.softworkz@hotmail.com> <85114ac94da731c168cac9db60bb1a33c08832e2.1633926637.git.softworkz@hotmail.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-tmn: [j7EXKlMAPc3HaWMONpV8g2yxOGPBOVP2] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: a9fffed6-076c-4e49-c87f-08d98c72b887 x-ms-traffictypediagnostic: MN2PR04MB6016: x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 83qRsp/VejyvjBhTRODGdax0cDQMr2X5zi69GHXbZDlGzFvjdA78OGyvTWGBgjaA9fCDS7Cv+E2eU7vtG7jZhkhjBeK6tzMWcFcKLi2/HI+IR06l20ghTtbI6lLRqSmjZdOWTDT4NWwa9t6kTMwavB2cRIx8X81thh6GarskmJulzdb/4XAw2L+1Im2UkLhQBJpIWI2pdLA6TO/5P5tFqGzr5s2ewr3vH8Fw5d7YMoHiVuQEQy5O6ZaMXHGESsWeb6IiZcBqBcDh3YOyjkrlAhGapDLz4tV402gCho1g0h0fSw81jMRonSh6FZ/xiCfYEXZgRbeoB50uKeH4otNv5nqMDYjSm1WEQ4+3TjsKF4xtZAQ83yhGZhmV5QcYJhuqu4FRYyaSqoAheG208YKEFTcfo3T1GC4ebGDj0E3iOoc2OZFcKKcDGW+4JqxrR6Mf x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: WYshxZIeQaV9m30Ud88bH3NDV+L7mT2HhHxs/LCv53vXTdXLH1U8h6wKzD3Rug7nJUcJSxlIUOtQGQ8x1TY7HjdfGtDRITu2AYWthKdd2IOsLYlwSR3yYp8b1DXikOcuEJpkwnRR1SjuHLAHFTwSoA== x-ms-exchange-transport-forked: True MIME-Version: 1.0 X-OriginatorOrg: sct-15-20-3174-20-msonline-outlook-529c7.templateTenant X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MN2PR04MB5981.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-CrossTenant-Network-Message-Id: a9fffed6-076c-4e49-c87f-08d98c72b887 X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Oct 2021 04:50:59.8903 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-CrossTenant-rms-persistedconsumerorg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR04MB6016 Subject: [FFmpeg-devel] [PATCH v13 06/14] avfilter/sbuffer: Add sbuffersrc and sbuffersink filters X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" X-TUID: 6L5VQgXknKm6 Signed-off-by: softworkz --- configure | 2 +- libavfilter/allfilters.c | 2 ++ libavfilter/buffersink.c | 63 +++++++++++++++++++++++++++++++++++ libavfilter/buffersink.h | 15 +++++++++ libavfilter/buffersrc.c | 72 ++++++++++++++++++++++++++++++++++++++++ libavfilter/buffersrc.h | 1 + 6 files changed, 154 insertions(+), 1 deletion(-) diff --git a/configure b/configure index 92610c7edc..a97cb41fc2 100755 --- a/configure +++ b/configure @@ -7724,7 +7724,7 @@ print_enabled_components(){ fi done if [ "$name" = "filter_list" ]; then - for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do + for c in asrc_abuffer vsrc_buffer ssrc_sbuffer asink_abuffer vsink_buffer ssink_sbuffer; do printf " &ff_%s,\n" $c >> $TMPH done fi diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index a1bf78f776..1381467c9b 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -540,8 +540,10 @@ extern const AVFilter ff_avsrc_movie; * being the same while having different 'types'). */ extern const AVFilter ff_asrc_abuffer; extern const AVFilter ff_vsrc_buffer; +extern const AVFilter ff_ssrc_sbuffer; extern const AVFilter ff_asink_abuffer; extern const AVFilter ff_vsink_buffer; +extern const AVFilter ff_ssink_sbuffer; extern const AVFilter ff_af_afifo; extern const AVFilter ff_vf_fifo; diff --git a/libavfilter/buffersink.c b/libavfilter/buffersink.c index b8ddafec35..8306312acc 100644 --- a/libavfilter/buffersink.c +++ b/libavfilter/buffersink.c @@ -29,6 +29,8 @@ #include "libavutil/internal.h" #include "libavutil/opt.h" +#include "libavcodec/avcodec.h" + #define FF_INTERNAL_FIELDS 1 #include "framequeue.h" @@ -57,6 +59,10 @@ typedef struct BufferSinkContext { int *sample_rates; ///< list of accepted sample rates, terminated by -1 int sample_rates_size; + /* only used for subtitles */ + enum AVSubtitleType *subtitle_types; ///< list of accepted subtitle types, must be terminated with -1 + int subtitle_types_size; + AVFrame *peeked_frame; } BufferSinkContext; @@ -168,6 +174,15 @@ AVABufferSinkParams *av_abuffersink_params_alloc(void) return NULL; return params; } + +AVSBufferSinkParams *av_sbuffersink_params_alloc(void) +{ + AVSBufferSinkParams *params = av_mallocz(sizeof(AVSBufferSinkParams)); + + if (!params) + return NULL; + return params; +} #endif static av_cold int common_init(AVFilterContext *ctx) @@ -305,6 +320,28 @@ static int asink_query_formats(AVFilterContext *ctx) return 0; } +static int ssink_query_formats(AVFilterContext *ctx) +{ + BufferSinkContext *buf = ctx->priv; + AVFilterFormats *formats = NULL; + unsigned i; + int ret; + + CHECK_LIST_SIZE(subtitle_types) + if (buf->subtitle_types_size) { + for (i = 0; i < NB_ITEMS(buf->subtitle_types); i++) + if ((ret = ff_add_subtitle_type(&formats, buf->subtitle_types[i])) < 0) + return ret; + if ((ret = ff_set_common_formats(ctx, formats)) < 0) + return ret; + } else { + if ((ret = ff_default_query_formats(ctx)) < 0) + return ret; + } + + return 0; +} + #define OFFSET(x) offsetof(BufferSinkContext, x) #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM static const AVOption buffersink_options[] = { @@ -322,9 +359,16 @@ static const AVOption abuffersink_options[] = { { NULL }, }; #undef FLAGS +#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_SUBTITLE_PARAM +static const AVOption sbuffersink_options[] = { + { "subtitle_types", "set the supported subtitle formats", OFFSET(subtitle_types), AV_OPT_TYPE_BINARY, .flags = FLAGS }, + { NULL }, +}; +#undef FLAGS AVFILTER_DEFINE_CLASS(buffersink); AVFILTER_DEFINE_CLASS(abuffersink); +AVFILTER_DEFINE_CLASS(sbuffersink); static const AVFilterPad avfilter_vsink_buffer_inputs[] = { { @@ -363,3 +407,22 @@ const AVFilter ff_asink_abuffer = { .outputs = NULL, FILTER_QUERY_FUNC(asink_query_formats), }; + +static const AVFilterPad avfilter_ssink_sbuffer_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_SUBTITLE, + }, +}; + +const AVFilter ff_ssink_sbuffer = { + .name = "sbuffersink", + .description = NULL_IF_CONFIG_SMALL("Buffer subtitle frames, and make them available to the end of the filter graph."), + .priv_class = &sbuffersink_class, + .priv_size = sizeof(BufferSinkContext), + .init = common_init, + .activate = activate, + FILTER_INPUTS(avfilter_ssink_sbuffer_inputs), + .outputs = NULL, + FILTER_QUERY_FUNC(ssink_query_formats), +}; diff --git a/libavfilter/buffersink.h b/libavfilter/buffersink.h index 69ed0f29a8..b439b586c5 100644 --- a/libavfilter/buffersink.h +++ b/libavfilter/buffersink.h @@ -129,6 +129,21 @@ typedef struct AVABufferSinkParams { */ attribute_deprecated AVABufferSinkParams *av_abuffersink_params_alloc(void); + +/** + * Deprecated and unused struct to use for initializing an sbuffersink context. + */ +typedef struct AVSBufferSinkParams { + const int *subtitle_type; +} AVSBufferSinkParams; + +/** + * Create an AVSBufferSinkParams structure. + * + * Must be freed with av_free(). + */ +attribute_deprecated +AVSBufferSinkParams *av_sbuffersink_params_alloc(void); #endif /** diff --git a/libavfilter/buffersrc.c b/libavfilter/buffersrc.c index b0611872f1..8f22587f42 100644 --- a/libavfilter/buffersrc.c +++ b/libavfilter/buffersrc.c @@ -39,6 +39,7 @@ #include "formats.h" #include "internal.h" #include "video.h" +#include "libavcodec/avcodec.h" typedef struct BufferSourceContext { const AVClass *class; @@ -63,6 +64,9 @@ typedef struct BufferSourceContext { uint64_t channel_layout; char *channel_layout_str; + /* subtitle only */ + enum AVSubtitleType subtitle_type; + int eof; } BufferSourceContext; @@ -130,6 +134,13 @@ int av_buffersrc_parameters_set(AVFilterContext *ctx, AVBufferSrcParameters *par if (param->channel_layout) s->channel_layout = param->channel_layout; break; + case AVMEDIA_TYPE_SUBTITLE: + s->subtitle_type = param->format; + if (param->width > 0) + s->w = param->width; + if (param->height > 0) + s->h = param->height; + break; default: return AVERROR_BUG; } @@ -197,6 +208,8 @@ int attribute_align_arg av_buffersrc_add_frame_flags(AVFilterContext *ctx, AVFra CHECK_AUDIO_PARAM_CHANGE(ctx, s, frame->sample_rate, frame->channel_layout, frame->channels, frame->format, frame->pts); break; + case AVMEDIA_TYPE_SUBTITLE: + break; default: return AVERROR(EINVAL); } @@ -269,6 +282,7 @@ unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src) #define OFFSET(x) offsetof(BufferSourceContext, x) #define A AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_AUDIO_PARAM #define V AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM +#define S AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_SUBTITLE_PARAM static const AVOption buffer_options[] = { { "width", NULL, OFFSET(w), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, V }, @@ -298,6 +312,16 @@ static const AVOption abuffer_options[] = { AVFILTER_DEFINE_CLASS(abuffer); +static const AVOption sbuffer_options[] = { + { "time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, INT_MAX, S }, + { "subtitle_type", NULL, OFFSET(subtitle_type), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, S }, + { "width", NULL, OFFSET(w), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, V }, + { "height", NULL, OFFSET(h), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, V }, + { NULL }, +}; + +AVFILTER_DEFINE_CLASS(sbuffer); + static av_cold int init_audio(AVFilterContext *ctx) { BufferSourceContext *s = ctx->priv; @@ -347,6 +371,21 @@ static av_cold int init_audio(AVFilterContext *ctx) return ret; } +static av_cold int init_subtitle(AVFilterContext *ctx) +{ + BufferSourceContext *c = ctx->priv; + + if (c->subtitle_type == AV_SUBTITLE_FMT_BITMAP) + av_log(ctx, AV_LOG_VERBOSE, "graphical subtitles - w:%d h:%d tb:%d/%d\n", + c->w, c->h, c->time_base.num, c->time_base.den); + else + av_log(ctx, AV_LOG_VERBOSE, "text subtitles - w:%d h:%d tb:%d/%d\n", + c->w, c->h, c->time_base.num, c->time_base.den); + + return 0; +} + + static av_cold void uninit(AVFilterContext *ctx) { BufferSourceContext *s = ctx->priv; @@ -381,6 +420,11 @@ static int query_formats(AVFilterContext *ctx) if ((ret = ff_set_common_channel_layouts(ctx, channel_layouts)) < 0) return ret; break; + case AVMEDIA_TYPE_SUBTITLE: + if ((ret = ff_add_format (&formats, c->subtitle_type)) < 0 || + (ret = ff_set_common_formats (ctx , formats )) < 0) + return ret; + break; default: return AVERROR(EINVAL); } @@ -408,6 +452,11 @@ static int config_props(AVFilterLink *link) if (!c->channel_layout) c->channel_layout = link->channel_layout; break; + case AVMEDIA_TYPE_SUBTITLE: + link->format = c->subtitle_type; + link->w = c->w; + link->h = c->h; + break; default: return AVERROR(EINVAL); } @@ -472,3 +521,26 @@ const AVFilter ff_asrc_abuffer = { FILTER_QUERY_FUNC(query_formats), .priv_class = &abuffer_class, }; + +static const AVFilterPad avfilter_ssrc_sbuffer_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_SUBTITLE, + .request_frame = request_frame, + .config_props = config_props, + }, +}; + +const AVFilter ff_ssrc_sbuffer = { + .name = "sbuffer", + .description = NULL_IF_CONFIG_SMALL("Buffer subtitle frames, and make them accessible to the filterchain."), + .priv_size = sizeof(BufferSourceContext), + + .init = init_subtitle, + .uninit = uninit, + + .inputs = NULL, + FILTER_OUTPUTS(avfilter_ssrc_sbuffer_outputs), + FILTER_QUERY_FUNC(query_formats), + .priv_class = &sbuffer_class, +}; diff --git a/libavfilter/buffersrc.h b/libavfilter/buffersrc.h index 08fbd18a47..929a2fa249 100644 --- a/libavfilter/buffersrc.h +++ b/libavfilter/buffersrc.h @@ -74,6 +74,7 @@ typedef struct AVBufferSrcParameters { /** * video: the pixel format, value corresponds to enum AVPixelFormat * audio: the sample format, value corresponds to enum AVSampleFormat + * subtitles: the subtitle format, value corresponds to enum AVSubtitleType */ int format; /**